1. Numerology: Or, What Pythagoras Wrought
by Dudley, Underwood 
Price: USD 20.00
Dealer: Alibris, Priceless Books via Alibris
Description: Washington Mathematical Association of America 1977 Trade paperback Very good. Trade paperback (US). 324 p. Spectrum. Audience: General/trade. 316pp. Extremities lightly rubbed. Illus.; endnotes; biblio.; index. 

2. Numerology
by Dudley Underwood 
Price: USD 20.00
Dealer: Biblio, Priceless Books
Description: Washington D.C.: Mathematical Association of America, Date: 1977. 316pp. Extremities lightly rubbed. Illus.; endnotes; biblio.; index.. Pb. VG. 1977. Mathematical Association of America ISBN 0883855240 9780883855249 [US] 

3. Numerology: Or, What Pythagoras Wrought (Spectrum)
by Dudley, Underwood 
Price: USD 20.00
Dealer: Abebooks, Priceless Books
Description: ISBN10: 0883855240, ISBN13: 9780883855249, [publisher: American Mathematical Society] Softcover 316pp. Extremities lightly rubbed. Illus.; endnotes; biblio.; index. [Urbana, IL, U.S.A.] [Publication Year: 1977]  

4. Numerology: Or What Pythagoras Wrought Spectrum Series
by Underwood Dudley 
Price: USD 22.95
Dealer: Biblio, Stanley Louis Remarkable Books (IOBA)
Description: Washington, D.C.: The Mathematical Association Of America, Date: 1997. First Paperback. Good+. A good copy in olive brown and black illustrated wrappers Ex-library but other than usual labels on cover and ffep, no other library markings 1" chip at top of rear wrapper, but no other damage Very clean internally Underwood Dudley (born 1937) is an American mathematician His popular works include several books describing crank mathematics by people who think they have squared the circle or done other impossible things 316 pp. 1997. The Mathematical Association Of America ISBN 0883855240 9780883855249 [US] 

5. Numerology or What Pythagoras Wrought
by Dudley, Underwood 
Price: USD 25.11
Dealer: ZVAB, Better World Books
Description: ISBN10: 0883855240, ISBN13: 9780883855249, [publisher: American Mathematical Society] Softcover Former library book; may include library markings. Used book that is in excellent condition. May show signs of wear or have minor defects. [Mishawaka, IN, U.S.A.] [Publication Year: 1997]  

6. Numerology: Or, What Pythagoras Wrought (Spectrum Series)
by Underwood Dudley 
Price: USD 25.95
Dealer: Alibris, Stanley Louis Remarkable Books via Alibris
Description: Washington, D. C The Mathematical Association Of America 1997 First Paperback Trade paperback Good+ A good copy in olive brown and black illustrated wrappers Ex-library but other than usual labels on cover and ffep, no other library markings 1" chip at top of rear wrapper, but no other damage Very clean internally Underwood Dudley (born 1937) is an American mathematician His popular works include several books describing crank mathematics by people who think they have squared the circle or done other impossible things 316 pp. 

7. Numerology: Or, What Pythagoras Wrought (Spectrum Series)
by Underwood Dudley 
Price: USD 25.95
Dealer: Abebooks, Stanley Louis Remarkable Books
Description: ISBN10: 0883855240, ISBN13: 9780883855249, [publisher: The Mathematical Association Of America, Washington, D.C.] Softcover First Edition A good copy in olive brown and black illustrated wrappers Ex-library but other than usual labels on cover and ffep, no other library markings 1" chip at top of rear wrapper, but no other damage Very clean internally Underwood Dudley (born 1937) is an American mathematician His popular works include several books describing crank mathematics by people who think they have squared the circle or done other impossible things 316 pp. [Saint Charles, IL, U.S.A.] [Publication Year: 1997]  

8. Numerology or What Pythagoras Wrought
by Dudley, Underwood 
Price: USD 26.13
Dealer: Abebooks, Better World Books
Description: ISBN10: 0883855240, ISBN13: 9780883855249, [publisher: American Mathematical Society] Softcover Former library book; may include library markings. Used book that is in excellent condition. May show signs of wear or have minor defects. [Mishawaka, IN, U.S.A.] [Publication Year: 1997]  

9. Numerology: Or, What Pythagoras Wrought (Spectrum)
by Dudley, Underwood 
Price: USD 29.31
Dealer: Alibris, Goodwill Industries via Alibris
Description: Mathematical Association of America 1998 Trade paperback The cover has visible markings and wear. Purchasing this item from Goodwill provides vocational opportunities for individuals with barriers to employment. 

10. Numerology or What Pythagoras Wrought
by Dudley Underwood 
Price: USD 36.65
Dealer: Biblio, Better World Books
Description: American Mathematical Society. Used - Very Good. Former library book; may include library markings. Used book that is in excellent condition. May show signs of wear or have minor defects. American Mathematical Society ISBN 0883855240 9780883855249 [US] 

11. Numerology: Or What Pythagoras Wrought Spectrum
by Underwood Dudley 
Price: USD 43.49
Dealer: Biblio, Ergodebooks
Description: The Mathematical Association of America, Date: 1997-06-01. Paperback. Good. 1997. The Mathematical Association of America ISBN 0883855240 9780883855249 [US] 

12. Numerology: Or, What Pythagoras Wrought (Spectrum)
by Dudley, Underwood 
Price: USD 45.67
Dealer: Abebooks, Irish Booksellers
Description: ISBN10: 0883855240, ISBN13: 9780883855249, [publisher: American Mathematical Society] Softcover 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: 1998]  

13. Numerology: Or, What Pythagoras Wrought (Spectrum)
by Dudley, Underwood 
Price: USD 57.51
Dealer: Abebooks, GoldBooks
Description: ISBN10: 0883855240, ISBN13: 9780883855249, [publisher: American Mathematical Society] Softcover Very Good Copy. Customer Service Guaranteed [Denver, CO, U.S.A.] [Publication Year: 1998]  

14. Numerology: Or, What Pythagoras Wrought (Spectrum)
by Dudley, Underwood 
Price: USD 72.34
Dealer: Abebooks, GoldenWavesOfBooks
Description: ISBN10: 0883855240, ISBN13: 9780883855249, [publisher: American Mathematical Society] Softcover New. Fast Shipping and good customer service [Fayetteville, TX, U.S.A.] [Publication Year: 1998]  

15. Numerology: Or, What Pythagoras Wrought (Spectrum)
by Dudley, Underwood 
Price: USD 72.73
Dealer: Abebooks, Front Cover Books
Description: ISBN10: 0883855240, ISBN13: 9780883855249, [publisher: American Mathematical Society] Softcover [Denver, CO, U.S.A.] [Publication Year: 1998]  

16. Numerology: Or, What Pythagoras Wrought (Spectrum)
by Dudley, Underwood 
Price: USD 72.85
Dealer: Abebooks, LibraryMercantile
Description: ISBN10: 0883855240, ISBN13: 9780883855249, [publisher: American Mathematical Society] Softcover [Humble, TX, U.S.A.] [Publication Year: 1998]  

17. Numerology: Or, What Pythagoras Wrought (Spectrum)
by Dudley, Underwood 
Price: USD 73.21
Dealer: Abebooks, Grumpys Fine Books
Description: ISBN10: 0883855240, ISBN13: 9780883855249, [publisher: American Mathematical Society] Softcover Prompt service guaranteed. [Tijeras, NM, U.S.A.] [Publication Year: 1998]  

18. Numerology: Or, What Pythagoras Wrought (Spectrum)
by Dudley, Underwood 
Price: USD 78.98
Dealer: Abebooks, GoldBooks
Description: ISBN10: 0883855240, ISBN13: 9780883855249, [publisher: American Mathematical Society] Softcover New Copy. Customer Service Guaranteed [Denver, CO, U.S.A.] [Publication Year: 1998]  

19. Numerology: Or, What Pythagoras Wrought (Spectrum)
by Dudley, Underwood 
Price: USD 108.99
Dealer: Abebooks, Books Unplugged
Description: ISBN10: 0883855240, ISBN13: 9780883855249, [publisher: American Mathematical Society] Softcover Buy with confidence! Book is in good condition with minor wear to the pages, binding, and minor marks within [Amherst, NY, U.S.A.] [Publication Year: 1998]  

20. Numerology: Or, What Pythagoras Wrought (Spectrum)
by Dudley, Underwood 
Price: USD 137.07
Dealer: Abebooks, Hafa Adai Books
Description: ISBN10: 0883855240, ISBN13: 9780883855249, [publisher: American Mathematical Society] Softcover [Moncks Corner, SC, U.S.A.] [Publication Year: 1998]  

21. Numerology: Or, What Pythagoras Wrought (Spectrum)
by Dudley, Underwood 
Price: USD 251.70
Dealer: Abebooks, Wizard Books
Description: ISBN10: 0883855240, ISBN13: 9780883855249, [publisher: American Mathematical Society] Softcover New [Long Beach, CA, U.S.A.] [Publication Year: 1998]  

22. Numerology: Or, What Pythagoras Wrought (Spectrum)
by Dudley, Underwood 
Price: USD 252.72
Dealer: Abebooks, GoldenDragon
Description: ISBN10: 0883855240, ISBN13: 9780883855249, [publisher: American Mathematical Society] Softcover Buy for Great customer experience [Houston, TX, U.S.A.] [Publication Year: 1998]  

23. Numerology What Pythagoras Wrought Pb
by Vv.Aa. 
Price: USD 620.98
Dealer: Abebooks, Iridium_Books
Description: ISBN10: 0883855240, ISBN13: 9780883855249, [publisher: CAMBRIDGE] Softcover [DH, SE, Spain] [Publication Year: 1998]