TY  - BOOK
TI  - Levels and trends of contraceptive use as assessed in 1988
T2  - Population studies
SN  - 9211511763
U1  - 363.96 
PY  - 1989///
CY  - New York
PB  - United Nations
KW  - Birth control
KW  - Contraception
N1  - "ST/ESA/SER.A/110."; Includes bibliographical references (p. 89-114)
ER  -