Não informado. (2022). Resource Bulletin PNW. Pacific Northwest Forest and Range Experiment Station.
Čikaški stil citiranja (17. izdanje)Não informado. Resource Bulletin PNW. Portland, Ore: Pacific Northwest Forest and Range Experiment Station, 2022.
MLA način citiranja (8. izdanje)Não informado. Resource Bulletin PNW. Pacific Northwest Forest and Range Experiment Station, 2022.
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