APA (7th ed.) Citation

United States. Forest Service & United States. Forest Service. Pacific Northwest Region. (1980). Siskiyou National Forest, Oregon and California (Rev. Mar. 1, 1972. -- Scale 1:126,720. 1/2 in. to 1 mile ; Polyconic proj. (W 12430'--W 12320'/N 4300'--N 4200').). The Service.

Chicago Style (17th ed.) Citation

United States. Forest Service and United States. Forest Service. Pacific Northwest Region. Siskiyou National Forest, Oregon and California. Rev. Mar. 1, 1972. -- Scale 1:126,720. 1/2 in. to 1 mile ; Polyconic proj. (W 12430'--W 12320'/N 4300'--N 4200'). [Portland?]: The Service, 1980.

MLA (9th ed.) Citation

United States. Forest Service and United States. Forest Service. Pacific Northwest Region. Siskiyou National Forest, Oregon and California. Rev. Mar. 1, 1972. -- Scale 1:126,720. 1/2 in. to 1 mile ; Polyconic proj. (W 12430'--W 12320'/N 4300'--N 4200'). The Service, 1980.