TY  - BOOK
ED  -  United Nations. 
TI  -  Principles and recommendations for a vital statistics system
U1  -  519.5 
PY  - 1973///
CY  -  New York : 
PB  -  United Nations, 
KW  -  Vital Statistics
KW  -  Statistical services
N1  -  Includes bibliographical references
ER  -