1940. Color reproduction by Bureau of Agricultural Economics, U.S.D.A.' Includes chart showing type of land use, acreage, and recommended use. Scale not ... United States Bureau of Agricultural Economics.
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1949. Blueline.; State roads revised to January 1, 1949.; 1937.; Data obtained from Statewide Highway Planning Survey.; 14.; Includes location map, inset... State Highway Commission of Indiana.
1980. United States. Soil Conservation Service. Base source: USGS 1:100,000 county base map dated 1979; interpretations derived from soil survey published in 1974.; "August 1980; 5,R-38,057."; In... U.S. Dept. of Agriculture, Soil Conservation Service (Washington.).