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5Published 1990“...U.S. Geological Survey :...”
Government Document Book -
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9by Turnipseed, D. Phil“...U.S. Geological Survey,...”
Published 1989
Government Document Microform Book -
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11by Slack, Larry J.“...U.S. Geological Survey ;...”
Published 1991
Government Document Microform Book -
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13by Gohn, Gregory S.“...U.S. Geological Survey ;...”
Published 1992
Government Document Microform Book -
14by Slack, Larry J.“...U.S. Geological Survey ;...”
Published 1991
Government Document Microform Book -
15by Slack, Larry J.“...U.S. Geological Survey ;...”
Published 1992
Government Document Microform Book -
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17Published 1994“...U.S. Geological Survey ;...”
Government Document Microform Book -
18by Gibson, Thomas G.“...U.S. Geological Survey,...”
Published 1994
Government Document Microform Book -
19by Telis, Pamela A.“...U.S. Geological Survey ;...”
Published 1992
Government Document Microform Book -
20