APA-ийн эшлэл(7 дахь хэвлэлт)

Westoff, L. A. (1971). From now to zero: Fertility, conception and abortion in America. Little, Brown and Co..

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Westoff, Leslie Aldridge. From Now to Zero: Fertility, Conception and Abortion in America. Boston: Little, Brown and Co., 1971.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Westoff, Leslie Aldridge. From Now to Zero: Fertility, Conception and Abortion in America. Little, Brown and Co., 1971.