Lenski, Gerhard <br/><br/>
Human societies:  an introduction to Macrosociology/ 
Gerhard lenski and Jean Lenski. 
 - Second Edition 
 - New York:  McGraw-Hill book Company,  ©1954. 
 - xi, 529 pages:  illustration;  24 cm. 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>0-07-037172-5 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sociology<br/>Social evolution
<br/><br/><label>Dewey Class. No.: </label>DC 301  / L54