Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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