APA (7th ed.) Citation

WHO & Hatcher, R. (1997). The Essentials Of Contraceptive Technology (1. Edisyon.). WHO.

Chicago Style (17th ed.) Citation

WHO and Robert Hatcher. The Essentials Of Contraceptive Technology. 1. Edisyon. Geneva: WHO, 1997.

MLA (9th ed.) Citation

WHO and Robert Hatcher. The Essentials Of Contraceptive Technology. 1. Edisyon. WHO, 1997.

Warning: These citations may not always be 100% accurate.