Sprott, W.J.H. <br/><br/>
Human groups 

 - England :  Penguin,  1958. 
 - 219p.;  18cm 
<br/><br/><label>ISBN: </label>014020346X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Social Processes
<br/><br/><label>Dewey Class. No.: </label>303.3  / SPR