Sayers, J. E. (1984). Papal government and England during the pontificate of Honorius III: (1216 - 1227). Cambridge studies in medieval life and thought.
Παραπομπή σε μορφή Chicago (17η εκδ.)Sayers, Jane E. "Papal Government and England During the Pontificate of Honorius III: (1216 - 1227)." Cambridge Studies in Medieval Life and Thought 1984.
Παραπομπή σε μορφή MLA (9th εκδ.)Sayers, Jane E. "Papal Government and England During the Pontificate of Honorius III: (1216 - 1227)." Cambridge Studies in Medieval Life and Thought, 1984.
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