Johansen, D. O., & Gates, C. M. (1967). Empire of the Columbia: A history of the Pacific Northwest (2d ed.). Harper & Row.
Chicago Style (17th ed.) CitationJohansen, Dorothy O., and Charles M. Gates. Empire of the Columbia: A History of the Pacific Northwest. 2d ed. New York: Harper & Row, 1967.
MLA (8th ed.) CitationJohansen, Dorothy O., and Charles M. Gates. Empire of the Columbia: A History of the Pacific Northwest. 2d ed. Harper & Row, 1967.
Warning: These citations may not always be 100% accurate.