Pellett. Whaleback Ships and the American Steel Barge Company. Wayne State University Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रPellett. Whaleback Ships and the American Steel Barge Company. Wayne State University Press.
एमएलए (9वां संस्करण) प्रशस्ति पत्रPellett. Whaleback Ships and the American Steel Barge Company. Wayne State University Press.
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