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1Published 1997“...U.S. Dept. of the Interior, U.S. Geological Survey :...”
Government Document Microform Book -
2by Gray, John E., 1956-“...U.S. Dept. of the Interior, Geological Survey :...”
Published 1988
Government Document Microform Book -
3Published 1992“...Dept. of the Interior, U.S. Geological Survey :...”
Government Document Microform Book -
4by Church, S. E.“...U.S. Dept. of the Interior, Geological Survey :...”
Published 1987
Government Document Microform Book -
5Published 1990“...U.S. Dept. of the Interior, Geological Survey :...”
Government Document Microform Book