Pelikan, J. J. (1959). The riddle of Roman Catholicism. Abingdon.
Cita Chicago Style (17a ed.)Pelikan, Jaroslav Jan. The Riddle of Roman Catholicism. New York [etc.]: Abingdon, 1959.
Cita MLA (9a ed.)Pelikan, Jaroslav Jan. The Riddle of Roman Catholicism. Abingdon, 1959.
Precaución: Estas citas no son 100% exactas.