Noble, T. F. X. (1984). Louis the Pious and the papacy: Law, politics and the theory of empire in the early ninth-century. Univ. Microfilms Internat.
Chicago-Zitierstil (17. Ausg.)Noble, Thomas F. X. Louis the Pious and the Papacy: Law, Politics and the Theory of Empire in the Early Ninth-century. Ann Arbor, Mich: Univ. Microfilms Internat, 1984.
MLA-Zitierstil (9. Ausg.)Noble, Thomas F. X. Louis the Pious and the Papacy: Law, Politics and the Theory of Empire in the Early Ninth-century. Univ. Microfilms Internat, 1984.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.