TY  - BOOK
AU  - "United Nations, International Economic And Social Affairs (Deptt of-)"
ED  - "United Nations, International Economic And Social Affairs (Deptt of-)"
TI  - Population and development modelling :  Proceedings
T2  - "Its, Population studies.73"
U1  - "Y:50aX:77, M1/UN" 
PY  - 1981///
CY  - New
PB  - York United Nations Publications    
ER  -