Schwantes, C. A. (1993). Railroad signatures across the Pacific Northwest. University of Washington Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रSchwantes, Carlos A. Railroad Signatures Across the Pacific Northwest. Seattle: University of Washington Press, 1993.
एमएलए (8वां संस्करण) प्रशस्ति पत्रSchwantes, Carlos A. Railroad Signatures Across the Pacific Northwest. University of Washington Press, 1993.
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