World Health Organization. (2009). Monitoring emergency obstetric care: A handbook. World Health Organization.
Chicago Style aipamenaWorld Health Organization. Monitoring Emergency Obstetric Care: A Handbook. [Geneva]: World Health Organization, 2009.
MLA aipamenaWorld Health Organization. Monitoring Emergency Obstetric Care: A Handbook. World Health Organization, 2009.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.