TY  - BOOK
AU  - Hatchor, Robert A
AU  - Guest, Felicia
AU  - Stewart, Gary K
TI  - Contraceptive technology (1976-1977)
SN  - 0-470-15228-1
U1  - 613.943 21st
PY  - 1976///
CY  - New York
PB  - Irvington
KW  - Conception-Prevention; Birth control; Family size; contraceptives; Menstrual cycle
ER  -