APA (7e ed.) Bronvermelding

Henshaw, S. K. (1981). Abortion, 1977-1979: Need and services in the United States, each state and metropolitan area. Alan Guttmacher Institute.

Chicago (17e ed.) Bronvermelding

Henshaw, Stanley K. Abortion, 1977-1979: Need and Services in the United States, Each State and Metropolitan Area. New York: Alan Guttmacher Institute, 1981.

MLA (9e ed.) Bronvermelding

Henshaw, Stanley K. Abortion, 1977-1979: Need and Services in the United States, Each State and Metropolitan Area. Alan Guttmacher Institute, 1981.