Cita APA (7a ed.)

Varga, A. C. (1978). On being human: Principles of ethics. Paulist Press.

Cita Chicago Style (17a ed.)

Varga, Andrew C. On Being Human: Principles of Ethics. New York [etc.]: Paulist Press, 1978.

Cita MLA (9a ed.)

Varga, Andrew C. On Being Human: Principles of Ethics. Paulist Press, 1978.