TY  - BOOK
ED  - International Union for the Scientific Study of Population.
ED  - United Nations.
TI  - Variables and questionnaire for comparative fertility surveys
T2  - Population studies, no. 45
U1  - 304.6320723 19
PY  - 1970///
CY  - New York
PB  - United Nations
KW  - Fertility, Human
KW  - Birth control
KW  - Social surveys
N1  - "United Nations publication. Sales no.: E.69.XIII.4."; Prepared in collaboration with the United Nations Secretariat; Bibliography: p. 102-104
ER  -