World population :   challenge to development . 

 - New York :  UN ,  1974 
 - iii, 48p. ,  18 cm. 
<br/><br/>Includes index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Demography<br/>Population
<br/><br/><label>Dewey Class. No.: </label>312  / UN 25