Durbin, K. (2013). Bridging a great divide: The battle for the Columbia River Gorge. Oregon State University Press.
Čikaški stil citiranja (17. izdanje)Durbin, Kathie. Bridging a Great Divide: The Battle for the Columbia River Gorge. Corvallis: Oregon State University Press, 2013.
MLA način citiranja (9. izdanje)Durbin, Kathie. Bridging a Great Divide: The Battle for the Columbia River Gorge. Oregon State University Press, 2013.
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