Cita APA (7a ed.)

Kegley, C. W., & Bretall, R. W. (1961). The theology of Paul Tillich. MacMillan.

Cita Chicago Style (17a ed.)

Kegley, Charles W., y Robert W. Bretall. The Theology of Paul Tillich. New York: MacMillan, 1961.

Cita MLA (9a ed.)

Kegley, Charles W., y Robert W. Bretall. The Theology of Paul Tillich. MacMillan, 1961.