A source book of gestalt psychology / 
prepared by Willis D. Ellis ; with an introduction by K. Koffka 
 - London :  Routledge,  [n.d.] 
 - 403 p. ;  22 cm. 
<br/><br/> Includes index 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Gestalt psychology
<br/><br/><label>Dewey Class. No.: </label>150.19