Não informado. (2022). USDA Forest Service Research Paper RM. Rocky Mountain Forest and Range Experiment Station.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. USDA Forest Service Research Paper RM. Fort Collins, Colo: Rocky Mountain Forest and Range Experiment Station, 2022.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. USDA Forest Service Research Paper RM. Rocky Mountain Forest and Range Experiment Station, 2022.
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