APA (7th ed.) Citation

Singer, P. (1991). Animal liberation (2nd ed.). Thorsons.

Chicago Style (17th ed.) Citation

Singer, Peter. Animal Liberation. 2nd ed. London: Thorsons, 1991.

MLA (9th ed.) Citation

Singer, Peter. Animal Liberation. 2nd ed. Thorsons, 1991.

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