Jaeger, C. S. (1994). The envy of angels: Cathedral schools and social ideals in medieval Europe, 950-1200. University of Pennsylvania Press.
芝加哥风格引文Jaeger, C. Stephen. The Envy of Angels: Cathedral Schools and Social Ideals in Medieval Europe, 950-1200. Philadelphia: University of Pennsylvania Press, 1994.
MLA引文Jaeger, C. Stephen. The Envy of Angels: Cathedral Schools and Social Ideals in Medieval Europe, 950-1200. University of Pennsylvania Press, 1994.
警告：这些引文格式不一定是100％准确.