TY  - BOOK
AU  - Pressat, Roland
AU  - Sym, C. A. M.
AU  - Grebenik, E.
TI  - A workbook in demography
SN  - 9780416781601
U1  - 312 
PY  - 1974///
CY  - London
PB  - Methuen
KW  - Demography
ER  -