Humphreys, R. S. (1969). The Ayyubids of Damascus, 589-658/ 1193-1260: A principality in medieval Syria. University Microfilms International.
Chicago Style aipamenaHumphreys, Richard Stephen. The Ayyubids of Damascus, 589-658/ 1193-1260: A Principality in Medieval Syria. Ann Arbor: University Microfilms International, 1969.
MLA aipamenaHumphreys, Richard Stephen. The Ayyubids of Damascus, 589-658/ 1193-1260: A Principality in Medieval Syria. University Microfilms International, 1969.
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