APA (7 वां संस्करण) प्रशस्ति पत्र
Petry, R. C. (1962). A History of Christianity: Readings in the history of the church ; the early and medieval church. Baker Book House.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र
Petry, Ray C. A History of Christianity: Readings in the History of the Church ; the Early and Medieval Church. Grand Rapids: Baker Book House, 1962.
एमएलए (9वां संस्करण) प्रशस्ति पत्र
Petry, Ray C. A History of Christianity: Readings in the History of the Church ; the Early and Medieval Church. Baker Book House, 1962.
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