Não informado. (2022). USDA Forest Service Research Paper RM. Rocky Mountain Forest and Range Experiment Station.
Čikaški stil citiranja (17. izdanje)Não informado. USDA Forest Service Research Paper RM. Fort Collins, Colo: Rocky Mountain Forest and Range Experiment Station, 2022.
MLA način citiranja (8. izdanje)Não informado. USDA Forest Service Research Paper RM. Rocky Mountain Forest and Range Experiment Station, 2022.
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