Simpson, P. K. (1987). The community of cattlemen: A social history of the cattle industry in southeastern Oregon, 1869-1912. University of Idaho Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रSimpson, Peter K. The Community of Cattlemen: A Social History of the Cattle Industry in Southeastern Oregon, 1869-1912. Moscow, Idaho: University of Idaho Press, 1987.
एमएलए (8वां संस्करण) प्रशस्ति पत्रSimpson, Peter K. The Community of Cattlemen: A Social History of the Cattle Industry in Southeastern Oregon, 1869-1912. University of Idaho Press, 1987.
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