APA Citation

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

Chicago Style Citation

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

MLA Citation

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

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