Cita APA

Mattoon, W. R. (1920). Forestry and farm income. U.S. Dept. of Agriculture.

Citación estilo Chicago

Mattoon, Wilbur R. Forestry and Farm Income. Washington, D.C.: U.S. Dept. of Agriculture, 1920.

Cita MLA

Mattoon, Wilbur R. Forestry and Farm Income. U.S. Dept. of Agriculture, 1920.