APA Style

Beauchamp, Tom L, Childress, James F. (1994). Principles of biomedical ethics (4th). New York: Oxford University Press.

Chicago Style

Beauchamp, Tom L, Childress, James F. Principles of biomedical ethics. 4th New York: Oxford University Press, 1994. Text.

MLA Style

Beauchamp, Tom L, Childress, James F. Principles of biomedical ethics. 4th New York: Oxford University Press, 1994. Text.

Turabian Style

Beauchamp, Tom L, Childress, James F. Principles of biomedical ethics. 4th New York: Oxford University Press, 1994. Print.