Boles. Sailing into History. Michigan State University Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रBoles. Sailing into History. Michigan State University Press.
एमएलए (9वां संस्करण) प्रशस्ति पत्रBoles. Sailing into History. Michigan State University Press.
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