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Author/Creator
- Geological Survey (U.S.)21
- Maps.com (Firm)3
- Adam Matthew Digital (Firm)2
- DeJarnette, Sydney S.2
- Goldhaber, Martin B.2
- Great Britain. Colonial Office2
- National Archives (Great Britain)2
- Planert, Michael2
- Williams, John S. (John Sutherland), 1947-2
- Dixon, Joan F.1
- Durnford, Elias, 1739-17941
- Geological Survey of Alabama1
- Gibson, Thomas G.1
- Groundwater Resources Program (U.S.)1
- Kinnaman, Sandra L.1
- Nayeghandi, Amar1
- Reinhardt, Juergen, 1946-1
- Schindler, J. Stephen1
- Smith, Eugene Allen, 1841-19271
- Stose, George Willis, 1869-19601