Lewin, Kurt <br/><br/>
Principles of topological psychology 

 - London:  McGraw-Hill Book Company, Inc,  1936. 
 - xv,231p.  ; ill  24cm.  . 
<br/><br/> http://41.86.172.11/internetserver3.1.2/detail.aspx#:~:text=Includes%20bibliographical%20references 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Psychology
<br/><br/><label>LC Class. No.: </label>BF203.L4