Proceeding and papers / 
Ninth International congress of psychology held at Yoke University, New Haven, Connecticul sep 1st to 7th, 1929 under the presideng of James Mackeen Cattell 
 - New York :  Russell and Russell,  1960 
 - xii, 534 p. ;  26 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Psychology--Congress
<br/><br/><label>Dewey Class. No.: </label>150.631