TY  - BOOK
ED  - Conference on population and development modelling (1979 : Geneva)
ED  - 
TI  - Population and development modelling: proceedings
U1  - 312 
PY  - 1981///
CY  - New York
PB  - UN. Dept of Economic anf Social Affairs
KW  - Demography
KW  - Population study
ER  -