Não informado. (1926). Yearbook of agriculture. U.S. Department of Agriculture.
Chicagoスタイル(17版)引用形式Não informado. Yearbook of Agriculture. Washington: U.S. Department of Agriculture, 1926.
MLA(8版)引用形式Não informado. Yearbook of Agriculture. U.S. Department of Agriculture, 1926.
警告: この引用は必ずしも正確ではありません.