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Publisher
- American Geographical Society of New York1
- Board of County Road Commissioners1
- Geological Survey1
- Geological Survey (U.S.)5
- Geological Survey Division (Urbana, Ill.)4
- Indiana Department of Geology and Natural Resources1
- Indiana Dept. of Conservation, Geological Survey1
- National Geospatial-Intelligence Agency55
- Standard Map Co.1
- United States Geological Survey1
- [s.n.]1