APA (7th ed.) Zitazioa
SpringerLink (Online service), Shoupe, D., & Christy, A. Contraception and Reproductive Medicine. BioMed Central : Imprint: BioMed Central.
Chicago Style (17th ed.) Zitazioa
SpringerLink (Online service), Donna Shoupe, eta Alicia Christy. Contraception and Reproductive Medicine. London: BioMed Central : Imprint: BioMed Central.
MLA (9th ed.) Zitazioa
SpringerLink (Online service), et al. Contraception and Reproductive Medicine. BioMed Central : Imprint: BioMed Central.
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