Hatcher, R. A. (1994). Contraceptive technology (16th rev. ed.). Irvington.
Lua i Stíl Chicago (17ú heag.)Hatcher, Robert A. Contraceptive Technology. 16th rev. ed. New York: Irvington, 1994.
Lua MLA (8ú heag.)Hatcher, Robert A. Contraceptive Technology. 16th rev. ed. Irvington, 1994.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.