Principles for a vital statistics system :    recommendations for th e improvement and standardization of vital statistics. 

 - New York :    United Nations,    1953. 
 - iv, 28 p. ;    28 cm. 
 - Its Statistical papers ;    ser. M, no. 19 .
<br/><br/><label>Subjects--Topical Terms: </label><br/> Vital statistics.