Cita APA (7a ed.)

Walbert, D. F., Butler, J. D., & Butler, J. D. (1973). Abortion, Society, and the law. Press of Case Western Reserve University.

Cita Chicago Style (17a ed.)

Walbert, David F., John Douglas Butler, y John Douglas Butler. Abortion, Society, and the Law. Cleveland [Ohio]: Press of Case Western Reserve University, 1973.

Cita MLA (8a ed.)

Walbert, David F., et al. Abortion, Society, and the Law. Press of Case Western Reserve University, 1973.