TY  - BOOK
AU  - "United Nations, Economic and Social Affairs (Deptt of-)"
ED  - "United Nations, Economic and Social Affairs (Deptt of-)"
TI  - Towards a system of social and demographic statistics
T2  - "United Nations Studies in Methods, Series F.18"
U1  - "Y:5:(B), L5/UN" 
PY  - 1975///
CY  - New
PB  - York UN      
KW  - Family Planning
ER  -