APA (7th ed.) Citation

Sidgwick, H. (1884). The methods of ethics (3. ed.). Macmillan.

Chicago Style (17th ed.) Citation

Sidgwick, Henry. The Methods of Ethics. 3. ed. London: Macmillan, 1884.

MLA (8th ed.) Citation

Sidgwick, Henry. The Methods of Ethics. 3. ed. Macmillan, 1884.