Cita APA (7a ed.)

Hudson, W. D. (1967). Ethical Instuitionism. Macmillan : St. Martin's Press.

Cita Chicago Style (17a ed.)

Hudson, W. D. Ethical Instuitionism. London: Macmillan : St. Martin's Press, 1967.

Cita MLA (9a ed.)

Hudson, W. D. Ethical Instuitionism. Macmillan : St. Martin's Press, 1967.