APA (7th ed.) Citation

Humphreys, R. S. (1969). The Ayyubids of Damascus, 589-658/ 1193-1260: A principality in medieval Syria. University Microfilms International.

Chicago Style (17th ed.) Citation

Humphreys, Richard Stephen. The Ayyubids of Damascus, 589-658/ 1193-1260: A Principality in Medieval Syria. Ann Arbor: University Microfilms International, 1969.

MLA (9th ed.) Citation

Humphreys, Richard Stephen. The Ayyubids of Damascus, 589-658/ 1193-1260: A Principality in Medieval Syria. University Microfilms International, 1969.