Cita APA (7a ed.)

Röper, A., Donceel, J. F., & Riesenhuber, K. (1966). The anonymous Christian. Sheed and Ward.

Cita Chicago Style (17a ed.)

Röper, Anita, J. F. Donceel, y Klaus Riesenhuber. The Anonymous Christian. New York: Sheed and Ward, 1966.

Cita MLA (9a ed.)

Röper, Anita, et al. The Anonymous Christian. Sheed and Ward, 1966.