Millar, Susanna <br/><br/>
The psychology of play / 
Susanna Millar. 
 - Harmondsworth :  Penguin,  1968. 
 - 288 p.  19 cm. 
<br/><br/><label>ISBN: </label>0140209743 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Psychology<br/>Child psychology<br/>Animals<br/>Psychological experiments.<br/>Child development
<br/><br/><label>Dewey Class. No.: </label>100 MIL