1. Shadows of Creation: Dark Matter and the Structure of the Universe
by Riordan, Michael 
Price: USD 1.99
Dealer: Alibris, Jenson Books Inc via Alibris
Description: W.H. Freeman & Company 1991 Hard cover Very good A well-cared-for item that has seen limited use but remains in great condition. The item is complete, unmarked, and undamaged, but may show some limited signs of wear. Item works perfectly. Pages are intact and not marred by notes or highlighting. The spine is undamaged. 

2. The Shadows of Creation: Dark Matter and the Structure of the Universe
by David N. Schramm; Michael Riordan 
Price: USD 1.99
Dealer: Alibris, ThriftBooks-Reno via Alibris
Description: Freeman & Company, W. H 1991 Hardcover Very good A copy that has been read, but remains in excellent condition. Pages are intact and are not marred by notes or highlighting, but may contain a neat previous owner name. The spine remains undamaged. An ex-library book and may have standard library stamps and/or stickers. At ThriftBooks, our motto is: Read More, Spend Less. 

3. Shadows of Creation: Dark Matter and the Structure of the Universe
by Riordan, Michael, Schramm, David N. 
Price: USD 4.77
Dealer: Abebooks, SecondSale
Description: ISBN10: 0716721570, ISBN13: 9780716721574, [publisher: W H Freeman & Co] Hardcover Item in good condition. Textbooks may not include supplemental items i.e. CDs, access codes etc. [Montgomery, IL, U.S.A.] [Publication Year: 1991]  

4. The Shadows of Creation: Dark Matter and the Structure of the Universe
by Riordan, Michael; Schramm, David N. 
Price: USD 5.23
Dealer: Alibris, ThriftBooks-Dallas via Alibris
Description: W.H. Freeman & Company 1991 Hardcover Good Pages can have notes/highlighting. Spine may show signs of wear. ~ ThriftBooks: Read More, Spend Less. 

5. The Shadows of Creation: Dark Matter and the Structure of the Universe
by Riordan, Michael; Schramm, David N. 
Price: USD 5.23
Dealer: Alibris, ThriftBooks-Dallas via Alibris
Description: W.H. Freeman & Company 1991 Hardcover Very good May have limited writing in cover pages. Pages are unmarked. ~ ThriftBooks: Read More, Spend Less. 

6. Shadows of Creation: Dark Matter and the Structure of the Universe
by Riordan, Michael 
Price: USD 5.29
Dealer: Abebooks, Jenson Books Inc
Description: ISBN10: 0716721570, ISBN13: 9780716721574, [publisher: W H Freeman & Co] Hardcover A well-cared-for item that has seen limited use but remains in great condition. The item is complete, unmarked, and undamaged, but may show some limited signs of wear. Item works perfectly. Pages are intact and not marred by notes or highlighting. The spine is undamaged. [Logan, UT, U.S.A.] [Publication Year: 1991]  

7. The Shadows of Creation : Dark Matter and the Structure of the Universe
by Schramm, David N., Riordan, Michael 
Price: USD 5.72
Dealer: ZVAB, Better World Books
Description: ISBN10: 0716721570, ISBN13: 9780716721574, [publisher: Freeman & Company, W. H.] Hardcover Former library book; may include library markings. Used book that is in clean, average condition without any missing pages. [Mishawaka, IN, U.S.A.] [Publication Year: 1991]  

8. The Shadows of Creation : Dark Matter and the Structure of the Universe
by Schramm, David N., Riordan, Michael 
Price: USD 5.94
Dealer: Abebooks, Better World Books
Description: ISBN10: 0716721570, ISBN13: 9780716721574, [publisher: Freeman & Company, W. H.] Hardcover Former library book; may include library markings. Used book that is in clean, average condition without any missing pages. [Mishawaka, IN, U.S.A.] [Publication Year: 1991]  

9. The Shadows of Creation : Dark Matter and the Structure of the Universe
by Schramm, David N., Riordan, Michael 
Price: USD 5.94
Dealer: Abebooks, Better World Books: West
Description: ISBN10: 0716721570, ISBN13: 9780716721574, [publisher: Freeman & Company, W. H.] Hardcover Used book that is in excellent condition. May show signs of wear or have minor defects. [Reno, NV, U.S.A.] [Publication Year: 1991]  

10. The Shadows of Creation : Dark Matter and the Structure of the Universe
by Schramm David N. Riordan Michael 
Price: USD 6.64
Dealer: Biblio, Better World Books
Description: Freeman & Company, W. H. Used - Very Good. Used book that is in excellent condition. May show signs of wear or have minor defects. Freeman & Company, W. H ISBN 0716721570 9780716721574 [US] 

11. The Shadows of Creation : Dark Matter and the Structure of the Universe
by Schramm David N. Riordan Michael 
Price: USD 6.88
Dealer: Biblio, Better World Books
Description: Freeman & Company, W. H. Used - Good. Former library book; may include library markings. Used book that is in clean, average condition without any missing pages. Freeman & Company, W. H ISBN 0716721570 9780716721574 [US] 

12. The Shadows of Creation : Dark Matter and the Structure of the Universe
by Schramm David N. Riordan Michael 
Price: USD 6.88
Dealer: Biblio, Better World Books
Description: Freeman & Company, W. H. Used - Good. Former library book; may include library markings. Used book that is in clean, average condition without any missing pages. Freeman & Company, W. H ISBN 0716721570 9780716721574 [US] 

13. Shadows of Creation: Dark Matter and the Structure of the Universe
by Michael Riordan; David N. Schramm 
Price: USD 7.27
Dealer: Biblio, Ergodebooks
Description: W H Freeman & Co (Sd), Date: 1991-03. Hardcover. Used: Good. 1991. W H Freeman & Co (Sd) ISBN 0716721570 9780716721574 [US] 

14. The Shadows of Creation : Dark Matter and the Structure of the Universe
by Riordan Michael; Schramm David N 
Price: USD 7.94
Dealer: Biblio, Lawrence Jones
Description: New York: W. H. Freeman & Co., Date: 1991. Foreword by Stephen W Hawking. viii, 277pp, b/w ills/diagrams, bibliography, index. A blank white label has been attached to the publications page (no text affected). Paperback. The book examines what is known of dark matter and explores its possible impact on the motions of galaxies, their composition and their distribution in the vastness of space. Along the way the book describes the efforts to determine the nature of dark matter, why most of the universe is invisible and how it all affects the world we live in.. Paperback. Soft Cover. Very Good. 8vo. 1991. W. H. Freeman & Co. ISBN 0716721570 9780716721574 [AU] 

15. The Shadows of Creation : Dark Matter and the Structure of the Universe
by Riordan, Michael; Schramm, David N. 
Price: USD 8.03
Dealer: AbebooksAU, Lawrence Jones Books
Description: ISBN10: 0716721570, ISBN13: 9780716721574, [publisher: W. H. Freeman & Co., New York] Softcover Foreword by Stephen W Hawking. viii, 277pp, b/w ills/diagrams, bibliography, index. A blank white label has been attached to the publications page (no text affected). Paperback. The book examines what is known of dark matter and explores its possible impact on the motions of galaxies, their composition and their distribution in the vastness of space. Along the way the book describes the efforts to determine the nature of dark matter, why most of the universe is invisible and how it all affects the world we live in. Size: 8vo [Ashmore, QLD, Australia] [Publication Year: 1991]  

16. The Shadows of Creation: Dark Matter and the Structure of the Universe
by Riordan, Michael; Schramm, David N. 
Price: USD 9.00
Dealer: Alibris, Prairie Archives via Alibris
Description: New York W.H. Freeman (1991) First Printing hardbound Good plus or better, light general wear. Lightly edgeworn jacket. Prev owner's name and inscription on front fly. 

17. The Shadows of Creation: Dark Matter and the Structure of the Universe
by Riordan, Michael; Schramm, David N. 
Price: USD 9.00
Dealer: Abebooks, Prairie Archives
Description: ISBN10: 0716721570, ISBN13: 9780716721574, [publisher: W.H. Freeman (1991) New York] Hardcover First Edition Good plus or better, light general wear. First Printing hardbound Lightly edgeworn jacket. Prev owner's name and inscription on front fly. [Springfield, IL, U.S.A.] [Publication Year: 1991]  

18. The Shadows of Creation : Dark Matter and the Structure of the Universe
by David N. Schramm; Michael Riordan 
Price: USD 9.23
Dealer: Biblio, ThriftBooks
Description: Freeman & Company, W. H., Date: 1991. Hardcover. Good. Disclaimer:A copy that has been read, but remains in clean condition. All pages are intact, and the cover is intact. The spine may show signs of wear. Pages can include limited notes and highlighting, and the copy can include previous owner inscriptions. 1991. Freeman & Company, W. H. ISBN 0716721570 9780716721574 [US] 

19. The Shadows of Creation : Dark Matter and the Structure of the Universe
by David N. Schramm; Michael Riordan 
Price: USD 9.23
Dealer: Biblio, ThriftBooks
Description: Freeman & Company, W. H., Date: 1991. Hardcover. Very Good. May have limited writing in cover pages. Pages are unmarked. ~ ThriftBooks: Read More, Spend Less.Dust jacket quality is not guaranteed. 1991. Freeman & Company, W. H. ISBN 0716721570 9780716721574 [US] 

20. The Shadows of Creation: Dark Matter and the Structure of the Universe
by Riordan, Michael; Schramm, David N. 
Price: USD 9.23
Dealer: Abebooks, ThriftBooks-Dallas
Description: ISBN10: 0716721570, ISBN13: 9780716721574, [publisher: W.H. Freeman & Company] Hardcover May have limited writing in cover pages. Pages are unmarked. ~ ThriftBooks: Read More, Spend Less 1.01 [Dallas, TX, U.S.A.] [Publication Year: 1991]  

21. Shadows of Creation: Dark Matter and the Structure of the Universe
by Riordan, Michael; Schramm, David N. 
Price: USD 9.50
Dealer: Abebooks, Thylacine Books
Description: ISBN10: 0716721570, ISBN13: 9780716721574, [publisher: W H Freeman & Co] Hardcover DJ: as new minus slight shelf wear BK: as new [Fort Worth, TX, U.S.A.] [Publication Year: 1991]  

22. The Shadows of Creation : Dark Matter and the Structure of the Universe
by Riordan Michael; Schramm David N 
Price: USD 9.92
Dealer: Biblio, Lawrence Jones
Description: New York: W. H. Freeman & Co., Date: 1991. viii, 277pp, index, biblography, bw ills/diagrams. Or black cloth in jacket. Slightest fo edge wear to jacket. Examines what is known of dark matter and explores its possible impact on the motions of galaxies, their composition and their distribution in the vastness of space. Along the way the book describes the efforts to determine the nature of dark matter, why most of the universe is invisible and how it all affects the world we live in.. First Edition. Hard Cover. Fine/Fine. 8vo. 1991. W. H. Freeman & Co. ISBN 0716721570 9780716721574 [AU] 

23. The Shadows of Creation : Dark Matter and the Structure of the Universe
by Riordan, Michael; Schramm, David N. 
Price: USD 10.04
Dealer: AbebooksAU, Lawrence Jones Books
Description: ISBN10: 0716721570, ISBN13: 9780716721574, [publisher: W. H. Freeman & Co., New York] Hardcover First Edition viii, 277pp, index, biblography, bw ills/diagrams. Or black cloth in jacket. Slightest fo edge wear to jacket. Examines what is known of dark matter and explores its possible impact on the motions of galaxies, their composition and their distribution in the vastness of space. Along the way the book describes the efforts to determine the nature of dark matter, why most of the universe is invisible and how it all affects the world we live in. Size: 8vo [Ashmore, QLD, Australia] [Publication Year: 1991]  

24. The Shadows of Creation: Dark Matter and the Structure of the Universe
by Schramm, David N. & Riordan, Michael 
Price: USD 11.58
Dealer: Alibris, Reuseabook via Alibris
Description: W.H. Freeman & Co Ltd 05/01/1991 Hardcover Dispatched, from the UK, within 48 hours of ordering. This book is in good condition but will show signs of previous ownership. Please expect some creasing to the spine and/or minor damage to the cover. Ripped/damaged jacket. The dust jacket of this book is slightly damaged/ripped, however, this does not affect the internal condition. Aged book. Tanned pages and age spots, however, this will not interfere with reading. 

25. The Shadows Of Creation: Dark Matter And The Structure Of The Universe
by Riordan Michael and Schramm David M 
Price: USD 11.76
Dealer: Biblio, Chris Hartmann, Bookseller
Description: New York: W. H. Freeman. Hardcover. Date: 1991. 1st Edition. 8vo 277pp . Fine in Very Good+ DJ. B&W Illustrations. DJ front inner flap has a vertical crease . 1991. W. H. Freeman ISBN 0716721570 9780716721574 [US] 

26. The Shadows of Creation: Dark Matter and the Structure of the Universe
by Riordan, Michael  
Price: USD 11.86
Dealer: AmazonUK, AmazonUK Marketplace
Description: Used - isbn: 0716721570 - isbn13: 9780716721574 W.H.Freeman & Co Ltd  

27. The Shadows of Creation. Dark Matter and the Structure of the Universe
by RIORDAN, Michael / SCHRAMM, David N. 
Price: USD 12.75
Dealer: ZVAB, HJP VERSANDBUCHHANDLUNG
Description: ISBN10: 0716721570, ISBN13: 9780716721574, [publisher: W. H. Freeman, New York] Hardcover First Edition viii + 168 p; many b/w Ills. Ex-Library Copy with usual marks. [WEDEL, SH, Germany] [Publication Year: 1991]  

28. The Shadows of Creation. Dark Matter and the Structure of the Universe
by RIORDAN, Michael / SCHRAMM, David N. 
Price: USD 14.05
Dealer: AbebooksDE, HJP VERSANDBUCHHANDLUNG
Description: ISBN10: 0716721570, ISBN13: 9780716721574, [publisher: W. H. Freeman, New York] Hardcover First Edition viii + 168 p; many b/w Ills. Ex-Library Copy with usual marks. [WEDEL, SH, Germany] [Publication Year: 1991]  

29. The Shadows of Creation: Dark Matter and the Structure of the Universe
by Schramm, David N. and Riordan, Michael 
Price: USD 14.61
Dealer: ZVAB, Reuseabook
Description: ISBN10: 0716721570, ISBN13: 9780716721574, [publisher: W.H.Freeman and Co Ltd] Hardcover Dispatched, from the UK, within 48 hours of ordering. This book is in good condition but will show signs of previous ownership. Please expect some creasing to the spine and/or minor damage to the cover. Ripped/damaged jacket. The dust jacket of this book is slightly damaged/ripped, however, this does not affect the internal condition. Aged book. Tanned pages and age spots, however, this will not interfere with reading. [Gloucester, GLOS, United Kingdom] [Publication Year: 1991]  

30. THE SHADOWS OF CREATION.
by Riordan, Michael and David N. Schramm. 
Price: USD 14.74
Dealer: ZVAB, Cambridge Rare Books
Description: ISBN10: 0716721570, ISBN13: 9780716721574, [publisher: Freeman] Hardcover First Edition 1991. Freeman. First. Book: Near Fine. DJ: Near Fine. 10x6.5. 277pp. Profuse b/w photos and illus. [Cambridge, GLOUC, United Kingdom] [Publication Year: 1991]  

31. The Shadows of Creation: Dark Matter and the Structure of the Universe
by Schramm, David N. and Riordan, Michael 
Price: USD 15.64
Dealer: AbebooksUK, Reuseabook
Description: ISBN10: 0716721570, ISBN13: 9780716721574, [publisher: W.H.Freeman and Co Ltd] Hardcover Dispatched, from the UK, within 48 hours of ordering. This book is in good condition but will show signs of previous ownership. Please expect some creasing to the spine and/or minor damage to the cover. Ripped/damaged jacket. The dust jacket of this book is slightly damaged/ripped, however, this does not affect the internal condition. Aged book. Tanned pages and age spots, however, this will not interfere with reading. [Gloucester, GLOS, United Kingdom] [Publication Year: 1991]  

32. THE SHADOWS OF CREATION.
by Riordan, Michael and David N. Schramm. 
Price: USD 15.77
Dealer: AbebooksUK, Cambridge Rare Books
Description: ISBN10: 0716721570, ISBN13: 9780716721574, [publisher: Freeman] Hardcover First Edition 1991. Freeman. First. Book: Near Fine. DJ: Near Fine. 10x6.5. 277pp. Profuse b/w photos and illus. [Cambridge, GLOUC, United Kingdom] [Publication Year: 1991]  

33. The Shadows of Creation: Dark Matter and the Structure of the Universe
by Riordan, Michael; Schramm, David N. 
Price: USD 15.88
Dealer: Alibris, Lawrence Jones via Alibris
Description: New York W. H. Freeman & Co. 1991 Paperback Soft Cover Very Good 8vo. Foreword by Stephen W Hawking. viii, 277pp, b/w ills/diagrams, bibliography, index. A blank white label has been attached to the publications page (no text affected). Paperback. The book examines what is known of dark matter and explores its possible impact on the motions of galaxies, their composition and their distribution in the vastness of space. Along the way the book describes the efforts to determine the nature of dark matter, why most of the universe is invisible and how it all affects the world we live in. 

34. The Shadows of Creation: Dark Matter and the Structure of the Universe
by Riordan, Michael; Schramm, David N. 
Price: USD 17.85
Dealer: Alibris, Lawrence Jones via Alibris
Description: New York W. H. Freeman & Co. 1991 First Edition Hard Cover Fine in Fine jacket 8vo. viii, 277pp, index, biblography, bw ills/diagrams. Or black cloth in jacket. Slightest fo edge wear to jacket. Examines what is known of dark matter and explores its possible impact on the motions of galaxies, their composition and their distribution in the vastness of space. Along the way the book describes the efforts to determine the nature of dark matter, why most of the universe is invisible and how it all affects the world we live in. 

35. Shadows of Creation: Dark Matter and the Structure of the Universe
by Michael Riordan; David N. Schramm 
Price: USD 20.00
Dealer: Alibris, Doss-Haus Books via Alibris
Description: New York W H Freeman & Co. 1991 Hardcover Fine in Fine jacket Book. 8vo-over 7¾"-9¾" tall. Hardcover 1991 edition. Dust jacket, boards and text in fine condition. Binding firm. Text free from markings. {277 pages} 

36. Shadows of Creation: Dark Matter and the Structure of the Universe.
by Michael Riordan; David N. Schramm 
Price: USD 20.00
Dealer: Biblio, Doss-Haus Books
Description: New York: W H Freeman & Co., Date: 1991. Book. Fine. Hardcover. 8vo - over 7¾" - 9¾" tall. Hardcover 1991 edition. Dust jacket, boards and text in fine condition. Binding firm. Text free from markings. {277 pages}. 1991. W H Freeman & Co. ISBN 0716721570 9780716721574 [US] 

37. Shadows of Creation: Dark Matter and the Structure of the Universe.
by Michael Riordan; David N. Schramm 
Price: USD 20.00
Dealer: Abebooks, Doss-Haus Books
Description: ISBN10: 0716721570, ISBN13: 9780716721574, [publisher: W H Freeman & Co., New York] Hardcover Hardcover 1991 edition. Dust jacket, boards and text in fine condition. Binding firm. Text free from markings. {277 pages} [Redondo Beach, CA, U.S.A.] [Publication Year: 1991]  

38. Shadows of Creation: Dark Matter and the Structure of the Universe
by Riordan, Michael; Schramm, David N. 
Price: USD 21.71
Dealer: Abebooks, GoldenWavesOfBooks
Description: ISBN10: 0716721570, ISBN13: 9780716721574, [publisher: W H Freeman & Co] Hardcover New. Fast Shipping and good customer service [Fayetteville, TX, U.S.A.] [Publication Year: 1991]  

39. The Shadows of Creation
by Riordan, Michael And David N. Schramm 
Price: USD 21.77
Dealer: Alibris, Cambridge Rare Books via Alibris
Description: W.H. Freeman & Company 1991 Hard cover 1991. Freeman. First. Book: Near Fine. DJ: Near Fine. 10x6.5. 277pp. Profuse b/w photos and illus. 

40. Shadows of Creation: Dark Matter and the Structure of the Universe
by Michael Riordan David N. Schramm 
Price: USD 26.01
Dealer: Biblio, Ergodebooks
Description: W H Freeman & Co (Sd), Date: 1991-03-01. Hardcover. Used:Good. 1991. W H Freeman & Co (Sd) ISBN 0716721570 9780716721574 [US] 

41. Shadows of Creation: Dark Matter and the Structure of the Universe
by Riordan, Michael 
Price: USD 27.14
Dealer: Abebooks, GoldBooks
Description: ISBN10: 0716721570, ISBN13: 9780716721574, [publisher: W H Freeman & Co] Hardcover New Copy. Customer Service Guaranteed [Denver, CO, U.S.A.] [Publication Year: 1991]  

42. The Shadows of Creation. Dark Matter and the Structure of the Universe
by Michael Riordan & David N. Schramm 
Price: USD 29.40
Dealer: AbebooksUK, SAVERY BOOKS
Description: ISBN10: 0716721570, ISBN13: 9780716721574, [publisher: W H Freeman & Co, USA] Hardcover HARDBACK IN JACKET. Clean & tight. No inscriptions. Jacket is not torn but has a little edge wear. Dispatched ROYAL MAIL FIRST CLASS with TRACKING next working day or sooner securely boxed in cardboard. ref pj19. The Shadows of Creation. Dark Matter and the Structure of the Universe by Michael Riordan & David N. Schramm. Published by W H Freeman & Co [Brighton, East Sussex, United Kingdom] [Publication Year: 1991]  

43. Shadows of Creation: Dark Matter and the Structure of the Universe
by Riordan, Michael; Schramm, David N. 
Price: USD 39.95
Dealer: Alibris, West Coast Bookseller via Alibris
Description: W H Freeman & Co 1991-03-01 Hardcover Like New Book is like new. Dust jacket in mylar protective cover has light shelf wear. 

44. Shadows of Creation: Dark Matter and the Structure of the Universe
by Riordan Michael; Schramm David N 
Price: USD 39.95
Dealer: Biblio, West Coast Consulting
Description: W H Freeman & Co, Date: 1991-03-01. Hardcover. Like New. Book is like new. Dust jacket in mylar protective cover has light shelf wear. 1991. W H Freeman & Co ISBN 0716721570 9780716721574 [US] 

45. Shadows of Creation: Dark Matter and the Structure of the Universe
by Riordan, Michael; Schramm, David N. 
Price: USD 39.95
Dealer: Abebooks, West Coast Bookseller
Description: ISBN10: 0716721570, ISBN13: 9780716721574, [publisher: W H Freeman & Co] Hardcover Book is like new. Dust jacket in mylar protective cover has light shelf wear. [Moorpark, CA, U.S.A.] [Publication Year: 1991]  

46. The Shadows of Creation: Dark Matter and the Structure of the Universe
by Riordan, Michael; Schramm, David N. 
Price: USD 40.00
Dealer: Abebooks, M & M Books
Description: ISBN10: 0716721570, ISBN13: 9780716721574, [publisher: W.H.Freeman & Co Ltd, NY] Softcover First Edition tiny sig. of previous owner on f.e.p. [ATHENS, GA, U.S.A.] [Publication Year: 1990]  

47. The Shadows of Creation: Dark Matter and the Structure of the Universe
by Riordan, Michael  
Price: USD 42.85
Dealer: AmazonUK, AmazonUK Marketplace
Description: Collectibles - isbn: 0716721570 - isbn13: 9780716721574 W.H.Freeman & Co Ltd  

48. Shadows of Creation: Dark Matter and the Structure of the Universe
by Riordan, Michael; Schramm, David N. 
Price: USD 53.00
Dealer: Abebooks, M & M Books
Description: ISBN10: 0716721570, ISBN13: 9780716721574, [publisher: W H Freeman & Co, NY] Hardcover First Edition small prev. owner sig on F.E.P [ATHENS, GA, U.S.A.] [Publication Year: 1990]  

49. The Shadows of Creation: Dark Matter and the Structure of the Universe
by Riordan, Michael; Schramm, David N. 
Price: USD 53.00
Dealer: Abebooks, M & M Books
Description: ISBN10: 0716721570, ISBN13: 9780716721574, [publisher: W.H.Freeman & Co, Ny] Hardcover First Edition small prev owner sig on F.E.P. [ATHENS, GA, U.S.A.] [Publication Year: 1991]  

50. Shadows of Creation Dark Matter and the Structure of the Universe
by Michael Riordan & David N. Schramm 
Price: USD 59.99
Dealer: Biblio, Eve's Reads
Description: Contents appear as unread copy. Minimal distinctions, pocket intact. DJ displays Minimal surface and edge wear, as shown …1st Foreword by Stephen W. Hawking Numerous textual illustrations. Examines what is known of dark matter and explores its possible impact on the motions of galaxies, their composition and their distribution in the vastness of space. Along the way the book describes the efforts to determine the nature of dark matter, why most of the universe is invisible and how it all affects the world we live in. Scientific summary of what is presently known about dark matter, which may account for as much as 90 percent of the mass of the universe … Insurance & handling is included free. Extra Charges/Fees apply on Shipments Outside The U.S. and Expedited Shipments. Oversize and/or heavy books may require additional fees. Will advise Updated 12.26.2022 Biblio 10.09.2020 #170-111718 Date: 1991. W.H Freeman & Co ISBN 0716721570 9780716721574 [US]