Straw, C. E. (1988). Gregory the Great: Perfection in imperfection. University of California Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रStraw, Carole Ellen. Gregory the Great: Perfection in Imperfection. Berkeley: University of California Press, 1988.
एमएलए (9वां संस्करण) प्रशस्ति पत्रStraw, Carole Ellen. Gregory the Great: Perfection in Imperfection. University of California Press, 1988.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.