International Population Conference, New Delhi 1989, 20-27 September =  Congrčs international de la population, New Delhi 1989, 20-27 septembre. 

 - Ličge, Belgique :   International Union for the Scientific Study of Population,  1990 
 - 448 p. : 
<br/><br/> Volume 1 
<br/><br/><label>Standard No.: </label>IIGG 
<br/><br/><label>LCCN: </label>90172485  
<br/><br/><label>Materias - Términos temáticos: </label><br/>POBLACIÓN --Congresses.