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2Subjects: “...Geology, Structural Maps. http://id.loc.gov/authorities/subjects/sh2008105178...”
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3Subjects: “...Geology, Structural Black Hills (S.D. and Wyo.) Maps....”
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4by Mapel, W. J. (William Jameson), 1922-, Gott, Garland B. (Garland Bayard), 1912-1996Subjects: “...Geology, Structural Black Hills (S.D. and Wyo.) Charts, diagrams, etc....”
Published 1959
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