APA aipamena

OMS. Endomental bleeding and steroidal contraception. Geneva: OMS.

Chicago Style aipamena

OMS. Endomental Bleeding and Steroidal Contraception. Geneva: OMS.

MLA aipamena

OMS. Endomental Bleeding and Steroidal Contraception. Geneva: OMS.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.