Valentine, Charles Wilfred,  1879-1964. <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 & co. ltd,  1950 
 - xiv, 522 p. :  ill. ;  23 cm. 
<br/><br/> "First published, June 25th, 1942 ... Third edition, 1946." 
<br/><br/>includes index 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Child psychology.<br/>Infant psychology.
<br/><br/><label>Dewey Class. No.: </label>136.7  / VAP 1950