Cita APA

United Nations, D. o. E. a. S. A. (1970). Variables and questionaire for comparative fertility surveys: (Population Studies No. 45). United Nations.

Citación estilo Chicago

United Nations, Dept. of Economic and Social Affairs. Variables and Questionaire for Comparative Fertility Surveys: (Population Studies No. 45). New York: United Nations, 1970.

Cita MLA

United Nations, Dept. of Economic and Social Affairs. Variables and Questionaire for Comparative Fertility Surveys: (Population Studies No. 45). United Nations, 1970.