Balda, Russell P. et. al., eds. <br/><br/>
Animal cognition in nature  The convergence of psychology and biology in laboratory and field 
ed. by Russell P Balda et. al. 
 - San Diego  Academic Press  1998 
 - ix, 465p. 
<br/><br/><label>ISBN: </label>012077030X 
<br/><br/><label>Dewey Class. No.: </label>591.51  / N984 (CES)