1. Animal Signals
by Harper, David, and Maynard Smith, John 
Price: USD 80.44
Dealer: Alibris, I Love Books Bookstore via Alibris
Description: New York, NY Oxford University Press, USA 2004 Hard cover Fine. a new copy with light bumps to corners Sewn binding. Cloth over boards. 176 p. Contains: Illustrations. Ecology and Evolution. Audience: General/trade. 

2. Animal Signals
by The Late John Maynard Smith 
Price: USD 99.33
Dealer: Abebooks, Collectors' Bookstore
Description: ISBN10: 0198526849, ISBN13: 9780198526841, [publisher: Oxford Univ Pr] Softcover First Edition First Edition thus, as good as new. Animal Signals by The Late John Maynard Smith. Published by Oxford Univ Pr in 2003. Paperback ISBN:9780198526841. Collectible item in excellent condition. [Deurne, Belgium] [Publication Year: 2003]  

3. Animal Signals
by The Late John Maynard Smith 
Price: USD 180.00
Dealer: Biblio, Collectors' Bookstore
Description: Oxford Univ Pr, Date: 2003. Paperback. New. First Edition thus, as good as new. Animal Signals by The Late John Maynard Smith. Published by Oxford Univ Pr in 2003. Paperback ISBN:9780198526841. Collectible item in excellent condition. 2003. Oxford Univ Pr ISBN 0198526849 9780198526841 [BE]