Walker, Stephen F. <br/><br/>
Animal thought 
Stephen Walker 
 - London  Boston  Routledge & K. Paul  1983 
 - xiv, 437 p.  23 cm. 
 - International library of psychology .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Animal intelligence<br/>Animals<br/>Psychology, Comparative
<br/><br/><label>Dewey Class. No.: </label>156