Tietueen sitaatit
APA-viiteUnited Nations Population Fund, United Nations. Economic Commission for Europe, & Philipov, D. (2001). Fertility and family surveys in countries of the ECE region: Standard country report. Bulgaria. United Nations.
Chicago-tyylinen lähdeviittausUnited Nations Population Fund, United Nations. Economic Commission for Europe, ja Dimiter Philipov. Fertility and Family Surveys in Countries of the ECE Region: Standard Country Report. Bulgaria. New York [N.Y.] ; Geneva: United Nations, 2001.
MLA-viiteUnited Nations Population Fund, et al. Fertility and Family Surveys in Countries of the ECE Region: Standard Country Report. Bulgaria. United Nations, 2001.
Harvard-tyylinen lähdeviittausUnited Nations Population Fund, United Nations. Economic Commission for Europe & Philipov, D. 2001. Fertility and family surveys in countries of the ECE region: Standard country report. Bulgaria. New York [N.Y.] ; Geneva: United Nations.