Cita APA (7a ed.)

Troeltsch, E., Wyon, O., & Niebuhr, H. R. (1960). The social teaching of the Christian churches. Harper & Brothers.

Cita Chicago Style (17a ed.)

Troeltsch, Ernst, Olive Wyon, y H. Richard Niebuhr. The Social Teaching of the Christian Churches. New York: Harper & Brothers, 1960.

Cita MLA (9a ed.)

Troeltsch, Ernst, et al. The Social Teaching of the Christian Churches. Harper & Brothers, 1960.