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Author/Creator
- Carter, Janet M.5
- Geological Survey (U.S.)5
- Redden, Jack A. (Jack Allison), 1926-20195
- South Dakota. Department of Environment and Natural Resources5
- West Dakota Water Development District (S.D.)5
- Long, John Hamilton2
- DenBoer, Gordon, 1933-1
- Instituto Geográfico Nacional (Spain)1
- Mendes, Cândido, 1818-18811
- Project Ploughshares1
- Silva G., Osvaldo1
- Sinko, Peggy Tuck1
- Theban Mapping Project1
- Weeks, Kent R.1