United States. Dept. of Agriculture. Agricultural History Branch, United States. Dept. of Agriculture. Centennial Committee, & Baker, G. (1963). Century of service: The first 100 years of the United States Department of Agriculture. Centennial Committee, U.S. Dept. of Agriculture : [for sale by the Supt. of Docs., U.S. Govt. Print. Off..

United States. Dept. of Agriculture. Agricultural History Branch, United States. Dept. of Agriculture. Centennial Committee, and Gladys Baker. Century of Service: The First 100 Years of the United States Department of Agriculture. Washington]: Centennial Committee, U.S. Dept. of Agriculture : [for sale by the Supt. of Docs., U.S. Govt. Print. Off., 1963.

United States. Dept. of Agriculture. Agricultural History Branch, et al. Century of Service: The First 100 Years of the United States Department of Agriculture. Centennial Committee, U.S. Dept. of Agriculture : [for sale by the Supt. of Docs., U.S. Govt. Print. Off., 1963.