Dyfyniad APA

United States. Departament of Agriculture. (1959). Food: The yearbook of agriculture 1959. U.S. Government Printing Office.

Dyfyniad Arddull Chicago

United States. Departament of Agriculture. Food: The Yearbook of Agriculture 1959. Washington, D.C: U.S. Government Printing Office, 1959.

Dyfyniad MLA

United States. Departament of Agriculture. Food: The Yearbook of Agriculture 1959. U.S. Government Printing Office, 1959.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.