United Nations. Economic Commission for Europe, United Nations Population Fund, & United nations. (1999). Fertility and family surveys in countries of the ECE region. UN.
Чикаго маягийн жагсаалтUnited Nations. Economic Commission for Europe, United Nations Population Fund, ба United nations. Fertility and Family Surveys in Countries of the ECE Region. New York: UN, 1999.
MLA ишлэлUnited Nations. Economic Commission for Europe, et al. Fertility and Family Surveys in Countries of the ECE Region. UN, 1999.
Warning: These citations may not always be 100% accurate.