Cita APA (7a ed.)

Crum, G., & MacCormack, T. (1992). Abortion: Pro-choice or pro-life? The American Univ. Pr.

Cita Chicago Style (17a ed.)

Crum, Gary, y Thelma MacCormack. Abortion: Pro-choice or Pro-life? Washington, DC: The American Univ. Pr, 1992.

Cita MLA (8a ed.)

Crum, Gary, y Thelma MacCormack. Abortion: Pro-choice or Pro-life? The American Univ. Pr, 1992.