APA (7th ed.) Citation

United States. Forest Service. (1981). Challis National Forest, Idaho, 1975. U.S. Dept. of Agriculture, Forest Service.

Chicago Style (17th ed.) Citation

United States. Forest Service. Challis National Forest, Idaho, 1975. [Ogden, Utah?]: U.S. Dept. of Agriculture, Forest Service, 1981.

MLA (9th ed.) Citation

United States. Forest Service. Challis National Forest, Idaho, 1975. U.S. Dept. of Agriculture, Forest Service, 1981.

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