Cita APA (7a ed.)

Horan, D. J., Mall, D., & Hilgers, T. W. (1981). New Perspectives on human abortion. University Publications of America.

Cita Chicago Style (17a ed.)

Horan, Dennis J., David Mall, y Thomas W. Hilgers. New Perspectives on Human Abortion. Frederick (Maryland): University Publications of America, 1981.

Cita MLA (9a ed.)

Horan, Dennis J., et al. New Perspectives on Human Abortion. University Publications of America, 1981.