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1Published 1979“...Department of the Interior, United States Geological Survey,...”
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2Published 1980“...Department of the Interior, United States Geological Survey,...”
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3Published 1980“...Department of the Interior, United States Geological Survey,...”
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4Published 1980“...Department of the Interior, United States Geological Survey,...”
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5Published 1980“...Department of the Interior, United States Geological Survey,...”
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6Published 1980“...Department of the Interior, United States Geological Survey,...”
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7Published 1980“...Department of the Interior, United States Geological Survey,...”
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8Published 1980“...Department of the Interior, United States Geological Survey,...”
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9Published 1980“...Department of the Interior, United States Geological Survey,...”
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10Published 1980“...Department of the Interior, United States Geological Survey,...”
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11Published 1980“...Department of the Interior, United States Geological Survey,...”
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12Published 1980“...Department of the Interior, United States Geological Survey,...”
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13Published 1980“...Department of the Interior, United States Geological Survey,...”
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14Published 1980“...Department of the Interior, United States Geological Survey,...”
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15Published 1981“...Department of the Interior, United States Geological Survey,...”
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16Published 1981“...Department of the Interior, United States Geological Survey,...”
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17Published 1981“...Department of the Interior, United States Geological Survey,...”
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18Published 1981“...Department of the Interior, United States Geological Survey,...”
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19Published 1981“...Department of the Interior, United States Geological Survey,...”
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