Cita APA

Sidgwick, H. 1., & Rawls, J. 1. (1981). The methods of ethics (Seventh edition.). Indianapolis [etc.]: Hackett Publishing Company.

Citación estilo Chicago

Sidgwick, Henry 1838-1900, and John 1921-2002 Rawls. The Methods of Ethics. Seventh edition. Indianapolis [etc.]: Hackett Publishing Company, 1981.

Cita MLA

Sidgwick, Henry 1838-1900, and John 1921-2002 Rawls. The Methods of Ethics. Seventh edition. Indianapolis [etc.]: Hackett Publishing Company, 1981.