Tohutoro APA (7th ed.)

Smith-Nowell P. H. (1959). Ethics (ed.). Penguin Books Ltd.

Tohutoru Kātū Chicago (17th ed.)

Smith-Nowell P. H. Ethics. ed. Middlesex: Penguin Books Ltd, 1959.

Tohutoro MLA (9th ed.)

Smith-Nowell P. H. Ethics. ed. Penguin Books Ltd, 1959.