TY - BOOK AU - Hatcher,Robert A. TI - The essentials of contraceptive technology SN - 1885960018 AV - RG136 .Es7 1997 U1 - 613.9/4 21 PY - 1997/// CY - Baltimore, MD PB - Population Information Program, Center for Communication Programs, Johns Hopkins School of Public Health KW - Contraceptives KW - Handbooks, manuals, etc KW - Birth control N1 - "July 1997."; "Supplement to Population reports, Family planning methods: New guidance, Series J, No. 44, Vol. XXIV, No. 2"--P. [2] of cover; Includes bibliographical references and index ER -