TY - BOOK AU - Hatcher Robert A., Johns Hopkins School of Public Health (Baltimore). Population Information Program TI - Essentials of contraceptive technology SN - 1885960018 U1 - WP640 PY - 1997/// CY - Baltimore PB - Johns Hopkins School of Public Health KW - Family Planning KW - Population Contorl KW - Contraceptive Devices KW - Contraception N1 - Pagination is not mentioned N2 - Contraception, Contraceptive Devices, Population Contorl, Family Planning ER -