Sprott, Walter. J. H. <br/><br/>
Heman groups 

 - Harmondsworth, England :  Penguin Books,  1958 
 - 219 p. 
 - Pelican psychology series  ; 346 .
 - Pelican psychology series  ; 346 .
<br/><br/><label>LCCN: </label>57144 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Psicología social.
<br/><br/><label>Dewey Class. No.: </label>301.15  / S6