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1Published 1988“...U.S. Dept. of the Interior, Geological Survey :...”
Government Document Microform Book -
2Published 1989“...U.S. Dept. of the Interior, Geological Survey :...”
Government Document Microform Book -
3by Kelley, K. D.“...U.S. Dept. of the Interior, Geological Survey :...”
Published 1990
Government Document Microform Book -
4Published 1990“...U.S. Dept. of the Interior, Geological Survey :...”
Government Document Microform Book