Gregory, R. L. (2001). Life in railroad logging camps of the Shevlin-Hixon Company, 1916-1950. Oregon State University, Dept. of Anthropology.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रGregory, Ronald L. Life in Railroad Logging Camps of the Shevlin-Hixon Company, 1916-1950. Corvallis: Oregon State University, Dept. of Anthropology, 2001.
एमएलए (8वां संस्करण) प्रशस्ति पत्रGregory, Ronald L. Life in Railroad Logging Camps of the Shevlin-Hixon Company, 1916-1950. Oregon State University, Dept. of Anthropology, 2001.
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