Cortie, A. L. (1890). Father Perry, the Jesuit astronomer. Catholic Truth Society.
Chicago Style aipamenaCortie, A. L. Father Perry, the Jesuit Astronomer. London: Catholic Truth Society, 1890.
MLA aipamenaCortie, A. L. Father Perry, the Jesuit Astronomer. Catholic Truth Society, 1890.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.