Handbook on civil registration and vital statistics systems :  Management, operation and maintenance / 
Department of Economic and Social Affairs. Statistics Division. 
 - New York :  United Nations ,  1998. 
 - 199 p. 
 - ST/ESA/STAT/SER.F  72 .
<br/><br/><label>ISBN: </label>92-1-161405-8 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Վիճակագրություն