Sander. John W. Garrett and the Baltimore and Ohio Railroad. Johns Hopkins University Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रSander. John W. Garrett and the Baltimore and Ohio Railroad. Johns Hopkins University Press.
एमएलए (9वां संस्करण) प्रशस्ति पत्रSander. John W. Garrett and the Baltimore and Ohio Railroad. Johns Hopkins University Press.
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