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1
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2
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3by Konieczki, A. D.“...U.S. Geological Survey ;...”
Published 1997
Government Document Microform Book -
4
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5
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6by Nordlund, Bryan D.“...U.S. Geological Survey :...”
Published 1990
Government Document Microform Book -
7Published 1991“...U.S. Geological Survey ;...”
Government Document Microform Book -
8by Wald, James D.“...U.S. Geological Survey ;...”
Published 1989
Government Document Microform Book -
9Published 1991“...U.S. Geological Survey ;...”
Government Document Microform Book -
10by Owen-Joyce, Sandra J.“...U.S. Geological Survey ;...”
Published 1991
Government Document Microform Book -
11by Tidball, Ronald R.“...U.S. Geological Survey :...”
Published 1991
Government Document Microform Book -
12by Peltz, Lorri A. (Lorri Ann), 1959-“...U.S. Geological Survey ;...”
Published 1991
Government Document Microform Book -
13by Schaefer, Donald H.“...U.S. Geological Survey ;...”
Published 1992
Government Document Microform Book -
14Published 1994“...U.S. Geological Survey ;...”
Government Document Book -
15Published 1996“...U.S. Geological Survey ;...”
Government Document Book -
16Published 1996“...U.S. Geological Survey :...”
Government Document Microform Book -
17
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18by Gauger, Robert W.“...U.S. Geological Survey ;...”
Published 1996
Government Document Microform Book -
19Published 1996“...U.S. Geological Survey ;...”
Government Document Microform Book -
20by Griffiths, Peter G.“...U.S. Geological Survey ;...”
Published 1996
Government Document Microform Book