Bierens de Haan, Johan Abraham,    1883- <br/><br/>
Animal psychology :    its nature and its problems /  
Johan Abraha m Bierens de Haan 
 - London :    Hutchinson's University Library,    1949? 
 - 160 p. ;    19 cm. 
 - Hutchinson's university library: Psychology ;    no.15 .
<br/><br/>Includes bibliographical references (p.155-156) 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Psychology, Comparative<br/> Animal intelligence
<br/><br/><label>Dewey Class. No.: </label>591.51 BIE