A world population monitoring,1991: with special emphasis on age structure. 

 - New York :  United Nations,  1991. 
<br/><br/> Population studies No.126. 
<br/><br/> The report presents the results of monitoring population trends and policies in growth, fertility, mortality and distribution, and international migration. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Population.<br/>Population policy -- Economic conditions//Migration//Fertility//Population increase/.--Population policy -- Economic conditions//Migration//Fertility//Population increase/.