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1by Plafcan, Maria“...U.S. Dept. of the Interior, U.S. Geological Survey ;...”
Published 1993
Government Document Book -
2Published 2001“...[U.S. Dept. of the Interior, U.S. Geological Survey],...”
Adobe Acrobat Reader required
Government Document Book -
3by Segerstrom, Kenneth, 1909-1992“...U.S. Dept. of the Interior, Geological Survey,...”
Published 1983
Government Document Book -
4by Reheis, Marith C.“...Dept. of the Interior, U.S. Geological Survey ;...”
Published 1987
Government Document Book