Cita APA

United Nations. Dept. of Social Affairs & 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.

Citación estilo Chicago

United Nations. Dept. of Social Affairs and 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.

Cita MLA

United Nations. Dept. of Social Affairs and 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.