Willemsen, Eleanor <br/><br/>
Understanding infancy 
Eleanor Willemsen 
 - San Francisco :  W. H. Freeman and Company,  1979. 
 - xiii, 331p. :  ill. :  23 cm. 
<br/><br/><label>ISBN: </label>0716710021 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Infant psychology
<br/><br/><label>LC Class. No.: </label>BF723.I6.W5