Cita APA (7a ed.)

Tillich, P., & Adams, J. L. (1948). The protestant era. The University of Chicago Press.

Cita Chicago Style (17a ed.)

Tillich, Paul, y James Luther Adams. The Protestant Era. Chicago: The University of Chicago Press, 1948.

Cita MLA (9a ed.)

Tillich, Paul, y James Luther Adams. The Protestant Era. The University of Chicago Press, 1948.