U.S.Department of Agriculture. (1948). Grass: The yearbook of agriculture 1946. Washington: U.S.Department of Agriculture.
Chicago Style CitationU.S.Department of Agriculture. Grass: The Yearbook of Agriculture 1946. Washington: U.S.Department of Agriculture, 1948.
Cita MLAU.S.Department of Agriculture. Grass: The Yearbook of Agriculture 1946. Washington: U.S.Department of Agriculture, 1948.
Atenció: Aquestes cites poden no estar 100% correctes.