Di Gregorio, M. (2004). Saint Nicholas of Tolentino: Patron of the holy souls. Alba House.
Chicago Style aipamenaDi Gregorio, Michael. Saint Nicholas of Tolentino: Patron of the Holy Souls. New York: Alba House, 2004.
MLA aipamenaDi Gregorio, Michael. Saint Nicholas of Tolentino: Patron of the Holy Souls. Alba House, 2004.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.