Pelikan, J. (1959). The riddle of roman catholicism. Abingdon.
Chicago Style aipamenaPelikan, Jaroslav. The Riddle of Roman Catholicism. New York: Abingdon, 1959.
MLA aipamenaPelikan, Jaroslav. The Riddle of Roman Catholicism. Abingdon, 1959.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.