Shipstone, Eva I. <br/><br/>
Some variables affecting pattern conception. 

 - [Washington] :  American Psychological Association,  [1961] 
 - Psychological monographs : general and applied ;  v. 74, no. 17 ; whole no. 504, 1960 .
<br/><br/>Includes bibliographical references. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Concepts.