Gaya APA

Sidgwick, H. (-1966). The methods of ethics, (repr) Tjet.pertama 1874, tjet. ke-7 1907. . New York: Dover Publs.

Gaya MLA

Sidgwick, Henry.. "The methods of ethics, (repr) Tjet.pertama 1874, tjet. ke-7 1907. ". New York: Dover Publs, -1966. Buku.