Cingolani, G. (1997). Gabriel of Our Lady of Sorrows: Life and prayers. Alba House.
Chicago Style aipamenaCingolani, Gabriele. Gabriel of Our Lady of Sorrows: Life and Prayers. New York: Alba House, 1997.
MLA aipamenaCingolani, Gabriele. Gabriel of Our Lady of Sorrows: Life and Prayers. Alba House, 1997.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.