"Color reproduction by Bureau of Agricultural Economics, U.S.D.A." "8-31-40." 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: 25 x 12 cm, on sheet 39 x 28 cm Coordinates: W0865527 W0864056 N0385416 N0382941