by Estados Unidos, United States

1918

by United States. Department of the Treasury

1917

by United States. Superintendent of Documents

1908

by United States. Bureau of Agricultural Economics

1930

by United States. Department of the Interior

1872

by United States. Office of Experiment Stations

1891

by United States. Department of Commerce

1914

by United States. National Bureau of Standards

1929

by United States. Bureau of Foreign and Domestic Commerce

1926

by United States. Department of Agriculture

1906

by United States. Joint Information Board on Minerals and Derivatives

1918

by State-Federal Crop and Livestock Reporting Service (Minnesota and United States)

1923