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Filters: Author is Brooks, Howard C.  [Clear All Filters]
1980
Gray, Jerry J., Howard C. Brooks, Norman V. Peterson, and Len Ramp. "Mineral Industry in Oregon, 1979." Oregon Geology 42, no. 3 (1980): 43-46.
1968
Brooks, Howard C., and Len Ramp. Gold and Silver in Oregon In Department of Geology and Mineral Industries Bulletin. Vol. 61. Oregon Department of Geology and Mineral Industries, 1968.