Front cover image for Resources for the twenty-first century : proceedings of the international centennial symposium of the United States Geological Survey, held at Reston, Virginia, October 14-19, 1979

Resources for the twenty-first century : proceedings of the international centennial symposium of the United States Geological Survey, held at Reston, Virginia, October 14-19, 1979

Frank C. Whitmore (Editor), M. E. Williams (Editor), Geological Survey (U.S.) (Issuing body)
eBook, English, 1982
U.S. Department of the Interior, U.S. Geological Survey, [Reston, Va.], 1982