Aging of population and its economic and social implication. 

 - NY  United nation        1956 
 - "vii,168p"  cm. 
 - "United States, Population Studies.26" .
<br/><br/><label>Standard No.: </label>89763 
<br/><br/><label>Source: </label> Reference Collections 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Fertility
<br/><br/><label>Dewey Class. No.: </label>"Y:56.1-1.N5, J6/UN"