1. Sex Ratios Hb
by Vv.Aa. 
Price: USD 1787.68
Dealer: Abebooks, Iridium_Books
Description: ISBN10: 0521818966, ISBN13: 9780521818964, [publisher: CAMBRIDGE] Hardcover [DH, SE, Spain] [Publication Year: 2002]  

2. Sex Ratios: Concepts and Research Methods
by Editor Ian C. W. Hardy 
Price: USD 30.00
Dealer: Biblio, Ergodebooks
Description: Cambridge University Press, Date: 2002-07-01. Hardcover. Good. 2002. Cambridge University Press ISBN 0521818966 9780521818964 [US] 

3. Sex Ratios: Concepts and Research Methods
by Hardy, Ian C W (Editor) 
Price: USD 72.13
Dealer: Alibris, Bonita via Alibris
Description: Cambridge University Press 2002 hardcover Good Access codes and supplements are not guaranteed with used items. May be an ex-library book. 

4. Sex Ratios: Concepts and Research Methods
Price: USD 275.74
Dealer: AbebooksUK, dsmbooks
Description: ISBN10: 0521818966, ISBN13: 9780521818964, [publisher: Cambridge University Press] Hardcover Like New [liverpool, United Kingdom] [Publication Year: 2002]