APA aipamena

World Health Organization. Safe motherhood Care in normal birth: A practical guide. World Health Organization.

Chicago Style aipamena

World Health Organization. Safe Motherhood Care in Normal Birth: A Practical Guide. Geneva: World Health Organization.

MLA aipamena

World Health Organization. Safe Motherhood Care in Normal Birth: A Practical Guide. World Health Organization.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.