APA (7th ed.) Citation

United States. Forest Service. Pacific Northwest Region & Geometronics Service Center (U.S.). (1992). Umpqua National Forest ... Oregon: Forest visitor map (Rev. / by the Forest Service, Geometronics Service Center, 1981 ; additional base revisions have been made in 1985.). The Office.

Chicago Style (17th ed.) Citation

United States. Forest Service. Pacific Northwest Region and Geometronics Service Center (U.S.). Umpqua National Forest ... Oregon: Forest Visitor Map. Rev. / by the Forest Service, Geometronics Service Center, 1981 ; additional base revisions have been made in 1985. [Portland, Or.]: The Office, 1992.

MLA (9th ed.) Citation

United States. Forest Service. Pacific Northwest Region and Geometronics Service Center (U.S.). Umpqua National Forest ... Oregon: Forest Visitor Map. Rev. / by the Forest Service, Geometronics Service Center, 1981 ; additional base revisions have been made in 1985. The Office, 1992.