Cita APA (7a ed.)

Richard, L. (1988). Is there a Christian ethics? Paulist Press.

Cita Chicago Style (17a ed.)

Richard, Lucien. Is There a Christian Ethics? New York: Paulist Press, 1988.

Cita MLA (9a ed.)

Richard, Lucien. Is There a Christian Ethics? Paulist Press, 1988.