Cita APA (7a ed.)

Estados Unidos. Department of Agriculture. (1948). Grass.: The yearbook of agriculture 1948. Department of Agriculture.

Cita Chicago Style (17a ed.)

Estados Unidos. Department of Agriculture. Grass.: The Yearbook of Agriculture 1948. Washington: Department of Agriculture, 1948.

Cita MLA (8a ed.)

Estados Unidos. Department of Agriculture. Grass.: The Yearbook of Agriculture 1948. Department of Agriculture, 1948.