Cristea, O. The Quest for Maritime Supremacy in the Black Sea during the later Middle Ages: Ovidiu Cristea. The Balkans and Caucasus : parallel processes on the opposite sides of the Black Sea.(2012).
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रCristea, Ovidiu. "The Quest for Maritime Supremacy in the Black Sea During the Later Middle Ages: Ovidiu Cristea." The Balkans and Caucasus : Parallel Processes on the Opposite Sides of the Black Sea.(2012) .
एमएलए (8वां संस्करण) प्रशस्ति पत्रCristea, Ovidiu. "The Quest for Maritime Supremacy in the Black Sea During the Later Middle Ages: Ovidiu Cristea." The Balkans and Caucasus : Parallel Processes on the Opposite Sides of the Black Sea.(2012), .
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