Smith, H. A. (1922). Forests and forestry in the United States: Supplementing Exhibit of the United States Forest Service at the Brazil Centennial Exposition Rio de Janeiro, Brazil. 1922 - 1923. By Herbert A. Smith. (Government Printing Office).
Chicago-Zitierstil (17. Ausg.)Smith, Herbert Augustine. Forests and Forestry in the United States: Supplementing Exhibit of the United States Forest Service at the Brazil Centennial Exposition Rio De Janeiro, Brazil. 1922 - 1923. By Herbert A. Smith. (Washington): (Government Printing Office), 1922.
MLA-Zitierstil (9. Ausg.)Smith, Herbert Augustine. Forests and Forestry in the United States: Supplementing Exhibit of the United States Forest Service at the Brazil Centennial Exposition Rio De Janeiro, Brazil. 1922 - 1923. By Herbert A. Smith. (Government Printing Office), 1922.