Gaya APA

Snow, R, O. (1924). St.Gregory the Great, his work and his spirit, 2d ed., rev.by R.Hudleston O.S.B. Penerbitan asli 1892. . London: Burns Oates & Washbourne.

Gaya MLA

Snow, R.R.Abbot,, O.S.B.. "St.Gregory the Great, his work and his spirit, 2d ed., rev.by R.Hudleston O.S.B. Penerbitan asli 1892. ". London: Burns Oates & Washbourne, 1924. Buku.