Não informado. (1950). Forest Resource Report. U.S. Department of Agriculture, Forest Service.
Chicagoスタイル(17版)引用形式Não informado. Forest Resource Report. Washington: U.S. Department of Agriculture, Forest Service, 1950.
MLA(8版)引用形式Não informado. Forest Resource Report. U.S. Department of Agriculture, Forest Service, 1950.
警告: この引用は必ずしも正確ではありません.