APA (7th ed.) Citation

United States. Forest Service. (1923). South half, Umatilla National Forest, Oreg. and Wash. GPO.

Chicago Style (17th ed.) Citation

United States. Forest Service. South Half, Umatilla National Forest, Oreg. and Wash. [Washington]: GPO, 1923.

MLA (9th ed.) Citation

United States. Forest Service. South Half, Umatilla National Forest, Oreg. and Wash. GPO, 1923.

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