APA(7版)引用形式

Não informado. (1963). US Forest Service Research Note PSW. U.S. Forest Service.

Chicagoスタイル(17版)引用形式

Não informado. US Forest Service Research Note PSW. Berkeley, Calif: U.S. Forest Service, 1963.

MLA(8版)引用形式

Não informado. US Forest Service Research Note PSW. U.S. Forest Service, 1963.

警告: この引用は必ずしも正確ではありません.