Animal cognition : a tribute to Donald a. Riley 

 - Hillsdale, N.J:  L. Erlbaum Associates,  1993 
 - xiv, 369 p. : ill. ; 24 cm 
<br/><br/><label>ISBN: </label>9780805811834 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Cognition in animals
<br/><br/><label>Dewey Class. No.: </label>156.3 ZEN