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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1940. 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.... United States Bureau of Agricultural Economics.
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.