APA (7th ed.) Zitazioa

International Perspectives on Sexual & Reproductive Health. Guttmacher Institute, Inc.

Chicago Style (17th ed.) Zitazioa

International Perspectives on Sexual & Reproductive Health. Guttmacher Institute, Inc.

MLA (9th ed.) Zitazioa

International Perspectives on Sexual & Reproductive Health. Guttmacher Institute, Inc.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.