Gumerlock. Carolingian Commentaries on the Apocalypse by Theodulf and Smaragdus. Medieval Institute Publications.
芝加哥风格引文Gumerlock. Carolingian Commentaries on the Apocalypse by Theodulf and Smaragdus. Medieval Institute Publications.
MLA引文Gumerlock. Carolingian Commentaries on the Apocalypse by Theodulf and Smaragdus. Medieval Institute Publications.
警告：这些引文格式不一定是100％准确.