Lenski, Gerhard Emmanuel,  1924- <br/><br/>
Human societies :  a macrolevel introduction to sociology / 
Gerhard Lenski. 
 - New York :  McGraw-Hill,  1970. 
 - xv, 525 p. :  ill. ;  24 cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>LCCN: </label>73-100804 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Macrosociology.<br/>Social evolution.