Westoff, L. A., & Westoff, C. F. (1971). From now to zero: Fertility, contraception and abortion in America. Little, Brown.
Citace podle Chicago (17th ed.)Westoff, Leslie Aldridge, a Charles F. Westoff. From Now to Zero: Fertility, Contraception and Abortion in America. Boston: Little, Brown, 1971.
Citace podle MLA (9th ed.)Westoff, Leslie Aldridge, a Charles F. Westoff. From Now to Zero: Fertility, Contraception and Abortion in America. Little, Brown, 1971.
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