APA (7th ed.) Citation

Van Wyk, R. N. (1990). Introduction to ethics. St. Martin's Press.

Chicago Style (17th ed.) Citation

Van Wyk, Robert N. Introduction to Ethics. New York: St. Martin's Press, 1990.

MLA (9th ed.) Citation

Van Wyk, Robert N. Introduction to Ethics. St. Martin's Press, 1990.