APA

Mothershead J. L., . (1955). Ethics. New York: Holt.

Chicago

Mothershead John L, . 1955. Ethics. New York: Holt.

Harvard

Mothershead J. L., . (1955). Ethics. New York: Holt.

MLA

Mothershead John L, . Ethics. New York: Holt. 1955.