Sprott W J H <br/><br/>
Human Groups / 
W. J. H. Sprott. 
 - [Harmondsworth, Middlesex]:  Penguin Books,   1958. 
 - 219 p. ;  18 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Social interaction
<br/><br/><label>LC Class. No.: </label>HM291