Sterba, J. P. (2001). Three challenges to ethics: Environmentalism, feminism, and multiculturalism. Oxford University Press.
Lua i Stíl Chicago (17ú heag.)Sterba, James P. Three Challenges to Ethics: Environmentalism, Feminism, and Multiculturalism. New York: Oxford University Press, 2001.
Lua MLA (9ú heag.)Sterba, James P. Three Challenges to Ethics: Environmentalism, Feminism, and Multiculturalism. Oxford University Press, 2001.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.