TY  - BOOK
ED  - United Nations
TI  - Prospects of population : methodology and assumptions: papers of the ad hoc group of experts on demographic projections, United Nations headquarters,7-11 November 1977 
T2  - Population studies 
U1  - 312 
PY  - 1979///
CY  - New York
PB  - United Nations
KW  - Statistics
ER  -