APA (7th ed.) Citation

United States. Forest Service. (1987). National forest camp stamps. U.S. Dept. of Agriculture, Forest Service.

Chicago Style (17th ed.) Citation

United States. Forest Service. National Forest Camp Stamps. [Washington, D.C.?]: U.S. Dept. of Agriculture, Forest Service, 1987.

MLA (9th ed.) Citation

United States. Forest Service. National Forest Camp Stamps. U.S. Dept. of Agriculture, Forest Service, 1987.