APA (7th ed.) Citation

United States. Forest Service. Pacific Northwest Region. (1980). Pacific Crest National Scenic Trail, Oregon (Scale [ca. 1:35,000].). The Region.

Chicago Style (17th ed.) Citation

United States. Forest Service. Pacific Northwest Region. Pacific Crest National Scenic Trail, Oregon. Scale [ca. 1:35,000]. Portland, Or.: The Region, 1980.

MLA (9th ed.) Citation

United States. Forest Service. Pacific Northwest Region. Pacific Crest National Scenic Trail, Oregon. Scale [ca. 1:35,000]. The Region, 1980.