World population trends and policies :  1977 monitoring report. 

 - New York :  United Nations ,  1979 
 - 2 vols. :  ill. ;   28 cm.  
 - Population studies no. 62 .
<br/><br/>Includes bibliographical references. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Economics
<br/><br/><label>Gov. Doc. Class. No.: </label>UN DIESA PS-62