APA (7th ed.) Citation

United States. Forest Service. Pacific Northwest Region & Geometronics Service Center (U.S.). (1990). Wallowa-Whitman National Forest, Oregon: Forest visitor map (Rev. 1989.). Pacific Northwest Region, USDA, Forest Service.

Chicago Style (17th ed.) Citation

United States. Forest Service. Pacific Northwest Region and Geometronics Service Center (U.S.). Wallowa-Whitman National Forest, Oregon: Forest Visitor Map. Rev. 1989. Portland, Or.: Pacific Northwest Region, USDA, Forest Service, 1990.

MLA (9th ed.) Citation

United States. Forest Service. Pacific Northwest Region and Geometronics Service Center (U.S.). Wallowa-Whitman National Forest, Oregon: Forest Visitor Map. Rev. 1989. Pacific Northwest Region, USDA, Forest Service, 1990.