Koffka, K. <br/><br/>
Principles of gestalt psychology 
by K. Koffka 
 - London  Routledge  1955 
 - 720p. 
<br/><br/> 42/- 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Gestalt Psychology
<br/><br/><label>Dewey Class. No.: </label>K9519 K821