Feyisetan, B. J., & Ainsworth, M. (1994). Contraceptive use and the quality, price and availability of family planning in Nigeria. World Bank.
Chicago-viite (17. p.)Feyisetan, Bamikale J., ja Martha Ainsworth. Contraceptive Use and the Quality, Price and Availability of Family Planning in Nigeria. Washington, D.C: World Bank, 1994.
MLA-viite (9. p.)Feyisetan, Bamikale J., ja Martha Ainsworth. Contraceptive Use and the Quality, Price and Availability of Family Planning in Nigeria. World Bank, 1994.
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