Παραπομπή APA

(1967). Demographic yearbook : =: Annuaire demographique : special topic : mortality statistics = (18th ed.). New York: United Nations. Statistical Office.

Παραπομπή Chicago Style

Demographic Yearbook : =: Annuaire Demographique : Special Topic : Mortality Statistics =. 18th ed. New York: United Nations. Statistical Office, 1967.

Παραπομπή MLA

Demographic Yearbook : =: Annuaire Demographique : Special Topic : Mortality Statistics =. 18th ed. New York: United Nations. Statistical Office, 1967.

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