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2by Oman, Joanne K.“...Dept. of the Interior, U.S. Geological Survey ;...”
Published 1986
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3by Obermeier, Stephen F.“...Dept. of the Interior, U.S. Geological Survey ;...”
Published 1989
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4Published 1990“...Dept. of the Interior, U.S. Geological Survey ;...”
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5Published 1990“...Dept. of the Interior, U.S. Geological Survey ;...”
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6by Oman, Joanne K.“...Department of the Interior, U.S. Geological Survey,...”
Published 1987
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7by Obermeier, Stephen F.“...Department of the Interior, U.S. Geological Survey,...”
Published 1989
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8by McCartan, Lucy“...U.S. Dept. of the Interior, U.S. Geological Survey ;...”
Published 1991
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9by Collins, Donley S.“...U.S. Dept. of the Interior, U.S. Geological Survey :...”
Published 1993
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10“...U.S. Department of the Interior, U.S. Geological Survey,...”
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11Published 1994“...U.S. Department of the Interior, U.S. Geological Survey,...”
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12“...U.S. Department of the Interior, U.S. Geological Survey,...”
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13“...U.S. Department of the Interior, U.S. Geological Survey,...”
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14“...U.S. Department of the Interior, U.S. Geological Survey,...”
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15“...U.S. Department of the Interior, U.S. Geological Survey,...”
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16by Langenheim, Victoria E.“...U.S. Department of the Interior, U.S. Geological Survey,...”
Published 1995
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17“...U.S. Department of the Interior, U.S. Geological Survey,...”
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18“...U.S. Department of the Interior, U.S. Geological Survey,...”
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19by Leach, D. L.“...U.S. Department of the Interior, U.S. Geological Survey,...”
Published 1997
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20by Odum, Jack K.“...U.S. Department of the Interior, U.S. Geological Survey,...”
Published 1995
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