TY  - BOOK
ED  - Department of international economic and social affairs
TI  - Levels and trends of contraceptive us as assessed in 1988 / 
T2  - Population Studies ; 110
U1  - R/613.9/DEP 
PY  - 1989///
CY  - New York
PB  - United Nations
KW  - Sexaual Hegiene
ER  -