Witkin, Herman A. <br/><br/>
Psychological differentiation:  studies of development / 
[by] H . A. Witkins [and others]. 
 - New York:  Wiley,  [1962]. 
 - 418 p.:  ill.;  24 cm. 
<br/><br/>Includes bibliography. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Genetic psychology.
<br/><br/><label>Dewey Class. No.: </label>155 WIT