Langdon, J. S. (1983). John III the Third Ducas Vatatzes' Byzantine imperium in Anatolian exile: 1222 - 54 ; the legacy of his diplomat., military and internal program for the restitutio orbis (Facs.). Univ. Microfilms Internat.
Chicago-Zitierstil (17. Ausg.)Langdon, John S. John III the Third Ducas Vatatzes' Byzantine Imperium in Anatolian Exile: 1222 - 54 ; the Legacy of His Diplomat., Military and Internal Program for the Restitutio Orbis. Facs. Ann Arbor, Mich: Univ. Microfilms Internat, 1983.
MLA-Zitierstil (9. Ausg.)Langdon, John S. John III the Third Ducas Vatatzes' Byzantine Imperium in Anatolian Exile: 1222 - 54 ; the Legacy of His Diplomat., Military and Internal Program for the Restitutio Orbis. Facs. Univ. Microfilms Internat, 1983.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.