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Filters: Author is Oregon Department of Geology and Mineral Industries,  [Clear All Filters]
1968
Oregon Department of Geology and Mineral Industries. Andesite Conference Guidebook In Department of Geology and Mineral Industries Bulletin, Edited by Hollis M. Dole. Vol. 62., 1968.
1943
Oregon Department of Geology and Mineral Industries. Oregon Metal Mines Handbook In Department of Geology and Mineral Industries Bulletin. Vol. 14-C., 1943.