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1by Wegner, Steven J.“...U.S. Geological Survey ;...”
Published 1991
Government Document Microform Book -
2by Bartholomay, Roy C.“...U.S. Geological Survey ;...”
Published 1992
Government Document Microform Book -
3by Bartholomay, Roy C.“...U.S. Geological Survey ;...”
Published 1999
Government Document Microform Book -
4by Bartholomay, Roy C.“...U.S. Dept. of the Interior, U.S. Geological Survey ;...”
Published 1997
Government Document Microform Book -
5by Bartholomay, Roy C.“...U.S. Dept. of the Interior, U.S. Geological Survey ;...”
Published 1993
Government Document Microform Book -
6Published 1994“...U.S. Dept. of the Interior, U.S. Geological Survey ;...”
Government Document Microform Book -
7by Bartholomay, Roy C.“...U.S. Dept. of the Interior, U.S. Geological Survey ;...”
Published 1994
Government Document Microform Book -
8by Bartholomay, Roy C.“...U.S. Dept. of the Interior, U.S. Geological Survey ;...”
Published 1995
Government Document Microform Book -
9by Bartholomay, Roy C.“...U.S. Dept. of the Interior, U.S. Geological Survey ;...”
Published 1997
Government Document Book -
10by Bartholomay, Roy C.“...U.S. Dept. of the Interior, U.S. Geological Survey ;...”
Published 1996
Government Document Microform Book -
11by Orr, Brennon R.“...U.S. Dept. of the Interior, U.S. Geological Survey ;...”
Published 1999
Government Document Book -
12by Williams, Linda M.“...Dept. of the Interior, U.S. Geological Survey ;...”
Published 1998
Government Document Book