Demacopoulos, G. E. (2015). Gregory the Great: Ascetic, pastor, and first man of Rome. University of Notre Dame Press.
芝加哥风格引文Demacopoulos, George E. Gregory the Great: Ascetic, Pastor, and First Man of Rome. Notre Dame, Indiana: University of Notre Dame Press, 2015.
MLA引文Demacopoulos, George E. Gregory the Great: Ascetic, Pastor, and First Man of Rome. University of Notre Dame Press, 2015.
警告：这些引文格式不一定是100％准确.