Weeks, John Robert,  1944- <br/><br/>
Population :  an introduction to concepts and issues / 
John R. Weeks 
 - 4th ed. 
 - Belmont, Ca. :  Wadsworth Publishing Co.,  1989 
 - xix., 552 p. :  ill. ;  24 cm. 
<br/><br/><label>ISBN: </label>0534101224 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Population.