Cita APA (7th ed.)

Royce, J. (1968). The problem of Christianity. University of Chicago Press.

Cita Chicago (17th ed.)

Royce, Josiah. The Problem of Christianity. Chicago: University of Chicago Press, 1968.

Cita MLA (9th ed.)

Royce, Josiah. The Problem of Christianity. University of Chicago Press, 1968.