Cita APA

Westoff, L. A., & Westoff, C. F. (1971). From now to zero: Fertility, contraception and abortion in America. Boston: Little, Brown.

Citación estilo Chicago

Westoff, Leslie Aldrige, y Charles F. Westoff. From Now to Zero: Fertility, Contraception and Abortion in America. Boston: Little, Brown, 1971.

Cita MLA

Westoff, Leslie Aldrige, y Charles F. Westoff. From Now to Zero: Fertility, Contraception and Abortion in America. Boston: Little, Brown, 1971.