APA aipamena

Sidgwick,Henry. (1993). The Methods of ethics. SBW Publishers.

Chicago Style aipamena

Sidgwick,Henry. The Methods of Ethics. New Delhi: SBW Publishers, 1993.

MLA aipamena

Sidgwick,Henry. The Methods of Ethics. SBW Publishers, 1993.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.