"Color reproduction by Bureau of Agricultural Economics, U.S.D.A." "7-31-41". Includes chart showing type of land use, acreage, and recommended use. Imprint: [Washington, D.C.?] : U.S. Bureau of Agricultural Economics, [1941] Dimensions: 18 x 26 cm, on sheet 38 x 28 cm; Scale: Scale not given. Coordinates: W0875917 W0871856 N0383200 N0380955