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ira a williams

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Cilt sonuçları

Geologic history of the Columbia River Gorge, as interpreted from the historic Columbia River scenic highway

Geologic history of the Columbia River Gorge, as interpreted from the historic Columbia River scenic highway

Ira A. Williams · Oregon Historical Society Press

137 sayfa · 1991

Geology

Iron oresThe limonite iron ores of Columbia County, OregonIra A. Williams

The limonite iron ores of Columbia County, Oregon

Ira A. Williams · Oregon Bureau of Mines and Geology

44 sayfa · 1923

Iron ores