APA(7版)引用形式

Não informado. (1987). The Journal of Agricultural Economics Research. U.S. Department of Agriculture.

Chicagoスタイル(17版)引用形式

Não informado. The Journal of Agricultural Economics Research. Washington: U.S. Department of Agriculture, 1987.

MLA(8版)引用形式

Não informado. The Journal of Agricultural Economics Research. U.S. Department of Agriculture, 1987.

警告: この引用は必ずしも正確ではありません.