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3Published 1931Subjects: “...Geology North America Bibliography....”
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4Published 1923Subjects: “...Geology North America Bibliography....”
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5Published 1948Subjects: “...Geology United States Bibliography Periodicals....”
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6Published 1983Subjects: “...Geological Survey (U.S.) Bibliography Periodicals....”
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7Published 1996Subjects: “...Geological Survey (U.S.) Bibliography Periodicals....”
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8Published 1964Subjects: “...Geological Survey (U.S.) Bibliography Periodicals....”
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