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1Published 1979“...Geological Survey circular ;...”
Government Document Book -
2by Hubbell, David Wellington, 1925-“...Geological Survey circular ;...”
Published 1983
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4by McKenzie, Stuart W.“...Geological Survey circular ;...”
Published 1979
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5
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6by Rinella, Joseph F.“...U.S. Geological Survey circular ;...”
Published 1993
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9“...Geological Survey circular ;...”
Government Document Book -
10“...Geological Survey circular ;...”
Government Document Book -
11“...Geological Survey circular ;...”
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