Brett, E. T. (1984). Humbert of Romans: His life and views of thirteenth-century society. Studies and texts.
Chicago-Zitierstil (17. Ausg.)Brett, Edward Tracy. "Humbert of Romans: His Life and Views of Thirteenth-century Society." Studies and Texts 1984.
MLA-Zitierstil (8. Ausg.)Brett, Edward Tracy. "Humbert of Romans: His Life and Views of Thirteenth-century Society." Studies and Texts, 1984.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.