Weeks, John Robert,  1944- <br/><br/>
Population :  an introduction to concepts and issues / 
John R. Weeks. 
 - Calififonia :  Wadsworth,  1978. 
 - xviii, 366 p. :  ill. 
<br/><br/><label>ISBN: </label>0534005497 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Population.