"Color reproduction by Bureau of Agricultural Economics, U.S.D.A." "3-30-39." Includes chart showing type of land use, acreage, and recommended use., Imprint: [Washington, D.C.?] : U.S. Bureau of Agricultural Economics, [1939], Dimensions: 17 x 16 cm, on sheet 28 x 22 cm; Scale: Scale not given., Coordinates: W0872602 W0870034 N0395712 N0393617
Parke County (Ind.). Land Use Planning Committee (1939). Parke County Indiana preliminary land use map. United States. Bureau of Agricultural Economics. https://purl.dlib.indiana.edu/iudl/images/VAC3073/VAC3073-M-00689 (map)