Valentine, C.W. <br/><br/>
The psychology of early childhood :    a study of mental development in the first years of life /  
C.W. Valentine. 
 - 4th ed. 
 - London :    Methuen,    1950. 
 - xiv, 522 p. ;    23 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Child development.
<br/><br/><label>Dewey Class. No.: </label>155.413