Karras. Encounters Old and New in World History. University of Hawai'i Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रKarras. Encounters Old and New in World History. University of Hawai'i Press.
एमएलए (9वां संस्करण) प्रशस्ति पत्रKarras. Encounters Old and New in World History. University of Hawai'i Press.
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