APA (7th ed.) Citation

United States. Forest Service. Pacific Northwest Region. (2012). Heppner Ranger District, Umatilla National Forest, Oregon. USDA Forest Service.

Chicago Style (17th ed.) Citation

United States. Forest Service. Pacific Northwest Region. Heppner Ranger District, Umatilla National Forest, Oregon. [Portland, Or.?]: USDA Forest Service, 2012.

MLA (9th ed.) Citation

United States. Forest Service. Pacific Northwest Region. Heppner Ranger District, Umatilla National Forest, Oregon. USDA Forest Service, 2012.

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