Crowley, R. (2005). 1453: The holy war for Constantinople and the clash of Islam and the West (1st paperback ed.). Hyperion.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रCrowley, Roger. 1453: The Holy War for Constantinople and the Clash of Islam and the West. 1st paperback ed. New York: Hyperion, 2005.
एमएलए (8वां संस्करण) प्रशस्ति पत्रCrowley, Roger. 1453: The Holy War for Constantinople and the Clash of Islam and the West. 1st paperback ed. Hyperion, 2005.
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