APA(7版)引用形式

Não informado. (1962). Farm index. U.S. Department of Agriculture, Economic Research Service.

Chicagoスタイル(17版)引用形式

Não informado. Farm Index. Washington: U.S. Department of Agriculture, Economic Research Service, 1962.

MLA(8版)引用形式

Não informado. Farm Index. U.S. Department of Agriculture, Economic Research Service, 1962.

警告: この引用は必ずしも正確ではありません.