Yearbook of agriculture - United States. Department of Agriculture. (U.S. Govt. Print. Off, 1905)

Yearbook of agriculture - United States. Department of Agriculture. (U.S. Govt. Print. Off, 1906)

Yearbook of agriculture - United States. Department of Agriculture. (U.S. Govt. Print. Off, 1911)

Yearbook of the United States Department of Agriculture - United States. Department of Agriculture. (Govt. Print. Off, 1906)

Yearbook of the United States Department of Agriculture - United States. Department of Agriculture. (Govt. Print. Off, 1908)