APA (7th ed.) Citation

United States. Forest Service. North Pacific Region. (1940). Umatilla National Forest..., Oregon & Washington. The Region.

Chicago Style (17th ed.) Citation

United States. Forest Service. North Pacific Region. Umatilla National Forest..., Oregon & Washington. [Portland, Or.]: The Region, 1940.

MLA (9th ed.) Citation

United States. Forest Service. North Pacific Region. Umatilla National Forest..., Oregon & Washington. The Region, 1940.

Warning: These citations may not always be 100% accurate.