APA (7th ed.) Citation

Singer, P. (1981). The expanding circle: Ethics and sociobiology. Farrar, Straus & Giroux.

Chicago Style (17th ed.) Citation

Singer, Peter. The Expanding Circle: Ethics and Sociobiology. New York: Farrar, Straus & Giroux, 1981.

MLA (9th ed.) Citation

Singer, Peter. The Expanding Circle: Ethics and Sociobiology. Farrar, Straus & Giroux, 1981.

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