APA (7th ed.) Citation

Singer, P. e. (1991). A companion to ethics. Blackwell Reference.

Chicago Style (17th ed.) Citation

Singer, Peter. ed. A Companion to Ethics. Cambridge: Blackwell Reference, 1991.

MLA (8th ed.) Citation

Singer, Peter. ed. A Companion to Ethics. Blackwell Reference, 1991.

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