APA Style

United Nation, Department of Economic and Social Affairs. (1981). Variation in the Incidence of Knowledge and use of Contraception: (FIRST EDITION). : UNITED NATIONS.

Chicago Style

United Nation, Department of Economic and Social Affairs. Variation in the Incidence of Knowledge and use of Contraception:. FIRST EDITION : UNITED NATIONS, 1981. Print.

MLA Style

United Nation, Department of Economic and Social Affairs. Variation in the Incidence of Knowledge and use of Contraception:. FIRST EDITION : UNITED NATIONS, 1981. Print.

Turabian Style

United Nation, Department of Economic and Social Affairs. Variation in the Incidence of Knowledge and use of Contraception:. FIRST EDITION : UNITED NATIONS, 1981. Print.