Não informado. (2022). US Forest Service Resource Bulletin PNW. Pacific Northwest Forest and Range Experiment Station.
Citação do estilo Chicago (17ª ed.)Não informado. US Forest Service Resource Bulletin PNW. Portland, Ore: Pacific Northwest Forest and Range Experiment Station, 2022.
Citação MLA (8ª ed.)Não informado. US Forest Service Resource Bulletin PNW. Pacific Northwest Forest and Range Experiment Station, 2022.
אזהרה: ציטוטים אלה לעיתים לא מדויקים ב 100%.