Não informado. (2022). USDA Forest Service Research Note RM. U.S. Forest Service.
Chicago-viite (17. p.)Não informado. USDA Forest Service Research Note RM. Fort Collins, Colo: U.S. Forest Service, 2022.
MLA-viite (8. p.)Não informado. USDA Forest Service Research Note RM. U.S. Forest Service, 2022.
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