Citazione Stile APA (7a Edizione)

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

Citazione stile Chigago Style (17a edizione)

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

Citatione MLA (9a ed.)

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