Weeks, John Robert,  1944- <br/><br/>
Population :  an introduction to concepts and issues / 
John R. Weeks 
 - 2nd ed. 
 - Belmont, Ca. :  Wadsworth Publishing Co.,  1981 
 - 425 p. :  ill. ;  24 cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>0534009212 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Population.