TY  - BOOK
ED  - National Research Council (U.S..)
TI  - Collecting data for the estimation of fertility and mortality
SN  - 0309032334
PY  - 1981///
CY  - Washington, D.C.
PB  - National Academy Press
KW  - Data collection
KW  - methods
KW  - Fertility
KW  - Mortality
ER  -