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Publisher
- Indiana. Department of Geology and Natural Resources196
- Geological Survey (U.S.)159
- Indiana. Geological Survey77
- Indiana University. Department of Geography75
- State Highway Commission of Indiana61
- United States. Bureau of Soils41
- [publisher not identified]40
- United States. Army Map Service22
- Schellie Associates18
- Indiana. Department of Transportation15
- Rand McNally and Company15
- Indiana. Legislative Bureau13
- Indiana. State Highway Commission (1919-1953)13
- Stevens, Katherine (Mapmaker)12
- Indiana. Division of Fish and Wildlife11
- Indiana. Division of Geology10
- H.M. Gousha Company9
- Indiana. State Highway Commission (1961-1981). Division of Planning9
- The Survey9
- United States. Bureau of Agricultural Economics9