APA (7th ed.) Citation

Sidgwick, H. (1962). The methods of ethics (7th ed.). Macmillan.

Chicago Style (17th ed.) Citation

Sidgwick, Henry. The Methods of Ethics. 7th ed. London: Macmillan, 1962.

MLA (9th ed.) Citation

Sidgwick, Henry. The Methods of Ethics. 7th ed. Macmillan, 1962.