APA aipamena

European journal of obstetrics & gynecology and reproductive biology. Amsterdam: Elsevier B.V.

Chicago Style aipamena

European Journal of Obstetrics & Gynecology and Reproductive Biology. Amsterdam: Elsevier B.V.

MLA aipamena

European Journal of Obstetrics & Gynecology and Reproductive Biology. Amsterdam: Elsevier B.V.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.