United States. Forest Service. (1937). Chemical seasoning of Douglas fir. [s.n.].
Chicago Style (17th ed.) CitationUnited States. Forest Service. Chemical Seasoning of Douglas Fir. [Washington]: [s.n.], 1937.
MLA (9th ed.) CitationUnited States. Forest Service. Chemical Seasoning of Douglas Fir. [s.n.], 1937.
Warning: These citations may not always be 100% accurate.