Durbin, K. (2013). Bridging a great divide: The battle for the Columbia River Gorge. Oregon State University Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रDurbin, Kathie. Bridging a Great Divide: The Battle for the Columbia River Gorge. Corvallis: Oregon State University Press, 2013.
एमएलए (8वां संस्करण) प्रशस्ति पत्रDurbin, Kathie. Bridging a Great Divide: The Battle for the Columbia River Gorge. Oregon State University Press, 2013.
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