Schwantes, C. A. (1994). Hard traveling: A portrait of work life in the New Northwest. University of Nebraska Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रSchwantes, Carlos A. Hard Traveling: A Portrait of Work Life in the New Northwest. Lincoln: University of Nebraska Press, 1994.
एमएलए (8वां संस्करण) प्रशस्ति पत्रSchwantes, Carlos A. Hard Traveling: A Portrait of Work Life in the New Northwest. University of Nebraska Press, 1994.
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