TY  - BOOK
ED  - WHO Scientific Group on Methods of Fertility Regulation
ED  - World Health Organization ,
TI  - Methods of fertility regulation: advances in research and clinical experience: report
U1  - 616.9 23
PY  - 1971///
CY  - Geneva
PB  - World Health Organization
KW  - Contraception
KW  - Fertility
ER  -