APA (7e ed.) Bronvermelding

Hatcher, R. A. (1997). The essentials of contraceptive technology. Population Information Program, Center for Communications Program, Johns Hopkins School of Public Health.

Chicago (17e ed.) Bronvermelding

Hatcher, Robert A. The Essentials of Contraceptive Technology. Baltimore, MD: Population Information Program, Center for Communications Program, Johns Hopkins School of Public Health, 1997.

MLA (9e ed.) Bronvermelding

Hatcher, Robert A. The Essentials of Contraceptive Technology. Population Information Program, Center for Communications Program, Johns Hopkins School of Public Health, 1997.