Sprott W. J. H. <br/><br/>
Human groups /    
W. J. H. Sprott. 
 - Middlesex :   Penguin Books,   1958, repr. 1977. 
 - 219 p. ;    18 cm. 
<br/><br/>Includes bibliographical references (p. 201-213) and index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Social sciences.--------
<br/><br/><label>Dewey Class. No.: </label>305 SPR 301.15 SPR