United States. Department of Agriculture. (1948). Grass: The yearbook of agriculture 1948. U.S. Government Printing.
Citace podle Chicago (17th ed.)United States. Department of Agriculture. Grass: The Yearbook of Agriculture 1948. Washington, D.C.: U.S. Government Printing, 1948.
Citace podle MLA (9th ed.)United States. Department of Agriculture. Grass: The Yearbook of Agriculture 1948. U.S. Government Printing, 1948.
Upozornění: Tyto citace jsou generovány automaticky. Nemusí být zcela správně podle citačních pravidel..