"Color reproduction by Bureau of Agricultural Economics, U.S.D.A." Includes chart showing type of land use, acreage, and recommended use., Imprint: [Washington, D.C.?] : U.S. Bureau of Agricultural Economics, [1940?], Scale: Scale not given.; Dimensions: 15 x 13 cm, on sheet 38 x 28 cm, Coordinates: W0850210 W0844851 N0394345 N0393119
Union County (Ind.). Land Use Planning Committee (1940). Union County Indiana preliminary land use map. United States. Bureau of Agricultural Economics. https://purl.dlib.indiana.edu/iudl/images/VAC3073/VAC3073-M-00409 (map)