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Author/Creator
- U.S. Nuclear Regulatory Commission2
- U.S.-Spain Joint Committee for Scientific and Technological Cooperation1
- USGS-NOAA Joint Office for Mapping and Research in the EEZ10
- Udías Vallina, Agustín1
- Underwood, James R., 1927-20121
- United States. Bureau of Indian Affairs1
- United States. Department of Energy4
- United States. Department of Energy. Nevada Operations Office1
- United States. Department of State1
- United States. Department of the Interior6
- United States. National Aeronautics and Space Administration49
- United States. National Marine Fisheries Service2
- United States. National Oceanic and Atmospheric Administration2
- United States. National Park Service2
- University of California, Berkeley. Department of Geology and Geophysics1
- University of Massachusetts at Amherst. Department of Geology and Geography1
- University of Michigan. Department of Geological Sciences2
- University of Nebraska--Lincoln. Conservation and Survey Division2
- University of Texas at Austin. Bureau of Economic Geology2
- University of Texas. Bureau of Economic Geology2