Lewin Kurt <br/><br/>
Field theory in social science   Selected theoretic    

 -  1952 
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Scinentific method
<br/><br/><label>Dewey Class. No.: </label>Y:SN12, J2