APA-ийн эшлэл(7 дахь хэвлэлт)

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

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

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

MLA -ийн эшлэл (9 дэх хэвлэлт)

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