United Nations. Dept. of Social Affairs. (1955). Age and sex patterns of mortality: Model life-tables for under-developed countries. United nations Dept. of Social Affairs, Population Branch.
Citazione stile Chigago Style (17a edizione)United Nations. Dept. of Social Affairs. Age and Sex Patterns of Mortality: Model Life-tables for Under-developed Countries. New York: United nations Dept. of Social Affairs, Population Branch, 1955.
Citatione MLA (9a ed.)United Nations. Dept. of Social Affairs. Age and Sex Patterns of Mortality: Model Life-tables for Under-developed Countries. United nations Dept. of Social Affairs, Population Branch, 1955.
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