Não informado. (2020). USDA Forest Service Resource Bulletin INT. US Department of Agriculture, Intermountain Forest and Range Experiment Station.
Chicago-viite (17. p.)Não informado. USDA Forest Service Resource Bulletin INT. Ogden, Utah: US Department of Agriculture, Intermountain Forest and Range Experiment Station, 2020.
MLA-viite (8. p.)Não informado. USDA Forest Service Resource Bulletin INT. US Department of Agriculture, Intermountain Forest and Range Experiment Station, 2020.
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