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1by Bartholomay, Roy C.“...U.S. Geological Survey ;...”
Published 1999
Government Document Microform Book -
2by Bartholomay, Roy C.“...U.S. Dept. of the Interior, U.S. Geological Survey ;...”
Published 1997
Government Document Microform Book -
3by Bartholomay, Roy C.“...U.S. Dept. of the Interior, U.S. Geological Survey ;...”
Published 1997
Government Document Book -
4by Williams, Linda M.“...Dept. of the Interior, U.S. Geological Survey ;...”
Published 1998
Government Document Book