Heider, Fritz <br/><br/>
On lewins methods and theory 

 - Michigan  Soc, for the Psychol. study of social issues  1959 
 - 15p 
 - Journal of  Social Issues 13 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sy7E1w
<br/><br/><label>Dewey Class. No.: </label>Sy7E1w  / I9