1. Orbit Twenty One
by Knight, Damon 
Price: USD 6.96
Dealer: Alibris, ThriftBooks-Dallas via Alibris
Description: HarperCollins Publishers 1980 Hardcover Good Missing dust jacket; Pages can have notes/highlighting. Spine may show signs of wear. ~ ThriftBooks: Read More, Spend Less. 

2. Orbit 21
by Damon Knight editor 
Price: USD 7.99
Dealer: Biblio, 20th Century Books
Description: 1st printing hardcover with dust jacket, contributors include Carol Esmhwhiller, Kim Stanley Robinson, Gordon Eklund, R A Lafferty and others. Date: 1980. Harper & Row ISBN 0060124261 9780060124267 [US] 

3. Orbit 21
by Knight, Damon 
Price: USD 10.71
Dealer: Abebooks, ZBK Books
Description: ISBN10: 0060124261, ISBN13: 9780060124267, [publisher: Harpercollins] Hardcover Pages and cover are intact. Used book in good and clean conditions. Limited notes marks and highlighting may be present. May show signs of normal shelf wear and bends on edges. Item may be missing CDs or access codes. May include library marks. [Woodland Park, NJ, U.S.A.] [Publication Year: 1980]  

4. Orbit Twenty One
by Knight Damon 
Price: USD 10.96
Dealer: Biblio, ThriftBooks
Description: HarperCollins Publishers, Date: 1980. Hardcover. Good. Missing dust jacket; Pages can have notes/highlighting. Spine may show signs of wear. ~ ThriftBooks: Read More, Spend Less.Dust jacket quality is not guaranteed. 1980. HarperCollins Publishers ISBN 0060124261 9780060124267 [US] 

5. Orbit Twenty One
by Knight, Damon 
Price: USD 10.96
Dealer: Abebooks, ThriftBooks-Dallas
Description: ISBN10: 0060124261, ISBN13: 9780060124267, [publisher: HarperCollins Publishers] Hardcover Missing dust jacket; Pages can have notes/highlighting. Spine may show signs of wear. ~ ThriftBooks: Read More, Spend Less 1 [Dallas, TX, U.S.A.] [Publication Year: 1980]  

6. Orbit 21
by Damon Knight 
Price: USD 14.25
Dealer: Biblio, Ergodebooks
Description: Harpercollins, Date: 1980-10. Hardcover. Good. 1980. Harpercollins ISBN 0060124261 9780060124267 [US] 

7. Orbit 21
by Damon Knight 
Price: USD 14.25
Dealer: Abebooks, Ergodebooks
Description: ISBN10: 0060124261, ISBN13: 9780060124267, [publisher: Harpercollins] Hardcover [Houston, TX, U.S.A.] [Publication Year: 1980]  

8. Orbit 21
by Knight, Damon 
Price: USD 15.97
Dealer: Abebooks, Irish Booksellers
Description: ISBN10: 0060124261, ISBN13: 9780060124267, [publisher: Harpercollins] Hardcover SHIPS FROM USA. Used books have different signs of use and do not include supplemental materials such as CDs, Dvds, Access Codes, charts or any other extra material. All used books might have various degrees of writing, highliting and wear and tear and possibly be an ex-library with the usual stickers and stamps. Dust Jackets are not guaranteed and when still present, they will have various degrees of tear and damage. All images are Stock Photos, not of the actual item. [Portland, ME, U.S.A.] [Publication Year: 1980]  

9. Orbit 21
by Knight Damon; Editor 
Price: USD 19.95
Dealer: Biblio, Ken Jackson
Description: New York: Harper and Brothers Publishers., Date: 1980 First edition hardcover in dust jacket. Jacket is price clipped with short crease to front flap, minor rubbing. Fine/Very Good. 1980. Harper and Brothers Publishers. ISBN 0060124261 9780060124267 [CA] 

10. Orbit 21
by Knight, Damon; Editor 
Price: USD 19.95
Dealer: Abebooks, Ken Jackson
Description: ISBN10: 0060124261, ISBN13: 9780060124267, [publisher: Harper and Brothers Publishers., New York] Hardcover First Edition First edition hardcover in dust jacket. Jacket is price clipped with short crease to front flap, minor rubbing. Fine/Very Good. [Calgary, AB, Canada] [Publication Year: 1980]  

11. Orbit 21
by Damon Knight 
Price: USD 20.00
Dealer: Abebooks, Eagle Eye Books
Description: ISBN10: 0060124261, ISBN13: 9780060124267, [publisher: Harpercollins January 1980] Hardcover [Decatur, GA, U.S.A.] [Publication Year: 1980]  

12. Orbit 21
by Damon Knight 
Price: USD 25.96
Dealer: Biblio, Ergodebooks
Description: Harpercollins, Date: 1980-10-01. Hardcover. Used:Good. 1980. Harpercollins ISBN 0060124261 9780060124267 [US] 

13. Orbit 21
by Damon Knight 
Price: USD 25.96
Dealer: Abebooks, Ergodebooks
Description: ISBN10: 0060124261, ISBN13: 9780060124267, [publisher: Harpercollins] Hardcover [Houston, TX, U.S.A.] [Publication Year: 1980]  

14. ORBIT 21
by Knight, Damon (editor) 
Price: USD 50.00
Dealer: Abebooks, Currey, L.W. Inc. ABAA/ILAB
Description: ISBN10: 0060124261, ISBN13: 9780060124267, [publisher: Harper & Row, New York, Cambridge, Philadelphia, San Francisco, London, Mexico City, Sao Paulo, Sydney] Hardcover First Edition Octavo, cloth-backed boards. First edition. Original anthology collecting thirteen stories by Carol Emshwiller, Gordon Eklund, R. A. Lafferty, Kim Stanley Robinson, and others. The elusive last book of this influential series. Anatomy of Wonder (1995) 4-540. A fine copy in fine dust jacket. (#94294) [Elizabethtown, NY, U.S.A.] [Publication Year: 1980]  

15. Orbit 21
by Knight, Damon 
Price: USD 73.03
Dealer: Alibris, GridFreed via Alibris
Description: Harpercollins 1980-10-01 Hardcover New Size: 9x6x1; New. In shrink wrap. Looks like an interesting title! 

16. ORBIT 21
by Knight, Damon 
Price: USD 73.03
Dealer: Abebooks, BennettBooksLtd
Description: ISBN10: 0060124261, ISBN13: 9780060124267, [publisher: Harpercollins] Hardcover New. In shrink wrap. Looks like an interesting title! 1.58 [LOS ANGELES, CA, U.S.A.] [Publication Year: 1980]  

17. Orbit 21
by Knight Damon 
Price: USD 76.68
Dealer: Biblio, GridFreed LLC
Description: Harpercollins, Date: 1980-10-01. Hardcover. New. New. In shrink wrap. Looks like an interesting title! 1980. Harpercollins ISBN 0060124261 9780060124267 [US]