APA (7e ed.) Bronvermelding

United States. Department of Agriculture. (1948). Grass: The yearbook of agriculture 1948. U.S. Government Printing.

Chicago (17e ed.) Bronvermelding

United States. Department of Agriculture. Grass: The Yearbook of Agriculture 1948. Washington, D.C.: U.S. Government Printing, 1948.

MLA (9e ed.) Bronvermelding

United States. Department of Agriculture. Grass: The Yearbook of Agriculture 1948. U.S. Government Printing, 1948.