APA (7th ed.) Citation

Callahan, S. C., & Callahan, D. (1984). Abortion: Understanding differences. Plenum Press.

Chicago Style (17th ed.) Citation

Callahan, Sidney Cornelia, and Daniel Callahan. Abortion: Understanding Differences. New York: Plenum Press, 1984.

MLA (9th ed.) Citation

Callahan, Sidney Cornelia, and Daniel Callahan. Abortion: Understanding Differences. Plenum Press, 1984.

Warning: These citations may not always be 100% accurate.