http://dewey.info/scheme/edition/e23/ en
979 Great Basin and Pacific Slope region of United States
979.5 Oregon
979.50049741 Chinook Indians 979.501 Early history to 1778 979.502 Spanish and British periods, 1778-1819 979.503 Preterritorial and territorial periods, 1819-1859 979.504 Statehood period, 1859-
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