Pepler, H. D. C. (1927). Regina caeli. St. Dominic's Press.
Chicago Style aipamenaPepler, H. D. C. Regina Caeli. St. Dominic's Press, 1927.
MLA aipamenaPepler, H. D. C. Regina Caeli. St. Dominic's Press, 1927.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.