United Nations. Statistical Division. (1998). Handbook on civil registration and vital statistics systems: Preparation of a legal framework. United Nations.
Chicago Style aipamenaUnited Nations. Statistical Division. Handbook on Civil Registration and Vital Statistics Systems: Preparation of a Legal Framework. New York: United Nations, 1998.
MLA aipamenaUnited Nations. Statistical Division. Handbook on Civil Registration and Vital Statistics Systems: Preparation of a Legal Framework. United Nations, 1998.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.