Hatcher, R. A. (2001). The Essentials of contraceptive technology. Population Information Program, Center for Communication Programs, John Hopkins University, School of Public Health.
Chicago-Zitierstil (17. Ausg.)Hatcher, Robert A. The Essentials of Contraceptive Technology. Baltimore, Md: Population Information Program, Center for Communication Programs, John Hopkins University, School of Public Health, 2001.
MLA-Zitierstil (9. Ausg.)Hatcher, Robert A. The Essentials of Contraceptive Technology. Population Information Program, Center for Communication Programs, John Hopkins University, School of Public Health, 2001.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.