TY  - BOOK
AU  - "United Nations, Social Affairs (Directorate of)"
ED  - "United Nations, Social Affairs (Directorate of)"
TI  - Determinants and consequences of population trends
T2  - "United Nations, Social Affairs (Deptt of-), Population Studies.17"
U1  - "Y:5.1.N5, J3/UN" 
PY  - 1953///
CY  - New
PB  - York United Nations USA    
N1  - Bibliography : P319-369
ER  -