Não informado. (1963). US Forest Service Research Paper PNW. U.S. Forest Service.
Chicago Style (17th ed.) CitationNão informado. US Forest Service Research Paper PNW. Portland, Ore: U.S. Forest Service, 1963.
MLA (8th ed.) CitationNão informado. US Forest Service Research Paper PNW. U.S. Forest Service, 1963.
Warning: These citations may not always be 100% accurate.