Não informado. (2022). Resource Bulletin PNW. Pacific Northwest Forest and Range Experiment Station.
Chicago-Zitierstil (17. Ausg.)Não informado. Resource Bulletin PNW. Portland, Ore: Pacific Northwest Forest and Range Experiment Station, 2022.
MLA-Zitierstil (8. Ausg.)Não informado. Resource Bulletin PNW. Pacific Northwest Forest and Range Experiment Station, 2022.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.