Coal resources of Oregon, by Ralph S. Mason and Margaret I. Erwin. Prepared in cooperation with the Oregon Dept. of Geology and Mineral Industries.
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TextPublication details: Washington, 1955.Description: ii, 7 p. maps (part fold.) 27 cmSubject(s): LOC classification: - QE75 .C5 no. 362
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Bibliography: p. 6-7.
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