United Nations Department of Economic and Social Affairs. (2000). Levels And Trends of Contraceptive Use as Assessed in 1998. United nations.
Чикаго маягийн жагсаалтUnited Nations Department of Economic and Social Affairs. Levels And Trends of Contraceptive Use as Assessed in 1998. New York: United nations, 2000.
MLA ишлэлUnited Nations Department of Economic and Social Affairs. Levels And Trends of Contraceptive Use as Assessed in 1998. United nations, 2000.
Warning: These citations may not always be 100% accurate.