The Earth , Its Wonders, Its Secrets:  Intelligence In Animals / 

 - London:  Readers Digest Association Limited,  1994 
 - p.160 
<br/><br/><label>ISBN: </label>0276421663 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Zoology<br/>Animals<br/>Specific topics in natural history of animals<br/> Habits and behavior <br/>Instinct; Reason <br/>Animal intelligence
<br/><br/><label>Dewey Class. No.: </label>591.513  / EAR