APA (7th ed.) Citation

Leo I, P. -., Barmby, J., Gregory I, P., & Feltoe, C. L. (1895). Letters and sermons. James Parker and Company ; The Christian literature company.

Chicago Style (17th ed.) Citation

Leo I, Pope -461, James Barmby, Pope Gregory I, and Charles Lett Feltoe. Letters and Sermons. Oxford : New York: James Parker and Company ; The Christian literature company, 1895.

MLA (9th ed.) Citation

Leo I, Pope -461, et al. Letters and Sermons. James Parker and Company ; The Christian literature company, 1895.

Warning: These citations may not always be 100% accurate.