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1Published 1993“...The Survey,...”
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2Published 1993“...The Survey ;...”
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3Published 1993“...The Survey ;...”
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4by Schreffler, Curtis L.“...U.S. Geological Survey,...”
Published 1996
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5by Schreffler, Curtis L.“...U.S. Geological Survey,...”
Published 1996
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8by Sloto, Ronald A.“...U.S. Dept. of the Interior, U.S. Geological Survey ;...”
Published 1994
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9by Buckwalter, Theodore F.“...U.S. Dept. of the Interior, U.S. Geological Survey ;...”
Published 1996
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10by Schreffler, Curtis L.“...U.S. Dept. of the Interior, U.S. Geological Survey ;...”
Published 1996
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11by Schreffler, Curtis L.“...U.S. Dept. of the Interior, U.S. Geological Survey :...”
Published 1996
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12by Schreffler, Curtis L.“...U.S. Dept. of the Interior, U.S. Geological Survey,...”
Published 2005
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13by Schreffler, Curtis L.“...U.S. Dept. of the Interior, U.S. Geological Survey,...”
Published 2001
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14by Schreffler, Curtis L.“...U.S. Department of the Interior, U.S. Geological Survey,...”
Published 1993
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15by Schreffler, Curtis L.“...U.S. Department of the Interior, U.S. Geological Survey,...”
Published 1998
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16by Schreffler, Curtis L.“...U.S. Deptartment of the Interior, U.S. Geological Survey,...”
Published 1999
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17by Schreffler, Curtis L.“...U.S. Dept. of the Interior, U.S. Geological Survey ; Earth Science Information Center, Open-File...”
Published 1996
Government Document Book