APA (7th ed.) Zitazioa

ebrary, Inc, & Shoupe, D. (2011). Contraception. Wiley-Blackwell.

Chicago Style (17th ed.) Zitazioa

ebrary, Inc, eta Donna Shoupe. Contraception. Chichester, West Sussex: Wiley-Blackwell, 2011.

MLA (9th ed.) Zitazioa

ebrary, Inc, eta Donna Shoupe. Contraception. Wiley-Blackwell, 2011.