APA-ийн эшлэл(7 дахь хэвлэлт)

Jaeger, C. S. (1994). The envy of angels: Cathedral schools and social ideals in medieval Europe, 950-1200. University of Pennsylvania Press.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Jaeger, C. Stephen. The Envy of Angels: Cathedral Schools and Social Ideals in Medieval Europe, 950-1200. Philadelphia: University of Pennsylvania Press, 1994.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Jaeger, C. Stephen. The Envy of Angels: Cathedral Schools and Social Ideals in Medieval Europe, 950-1200. University of Pennsylvania Press, 1994.