Hatcher, R. A. (2005). The essentials of contraceptive technology. Population Information Program, Center for Communication Programs, Johns Hopkins School of Public Health.
Цитирование в стиле Чикаго (17-е изд.)Hatcher, Robert A. The Essentials of Contraceptive Technology. Baltimore, MD: Population Information Program, Center for Communication Programs, Johns Hopkins School of Public Health, 2005.
Цитирование MLA (8-е изд.)Hatcher, Robert A. The Essentials of Contraceptive Technology. Population Information Program, Center for Communication Programs, Johns Hopkins School of Public Health, 2005.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.