Não informado. (1950). Forest Resource Report. U.S. Department of Agriculture, Forest Service.
Style de citation Chicago (17e éd.)Não informado. Forest Resource Report. Washington: U.S. Department of Agriculture, Forest Service, 1950.
Style de citation MLA (8e éd.)Não informado. Forest Resource Report. U.S. Department of Agriculture, Forest Service, 1950.
Attention : ces citations peuvent ne pas être correctes à 100%.