APA (7th ed.) Citation

Steen, H. K. (1991). The beginning of the National Forest System. U.S. Dept. of Agriculture, Forest Service.

Chicago Style (17th ed.) Citation

Steen, Harold K. The Beginning of the National Forest System. Washington, D.C.: U.S. Dept. of Agriculture, Forest Service, 1991.

MLA (9th ed.) Citation

Steen, Harold K. The Beginning of the National Forest System. U.S. Dept. of Agriculture, Forest Service, 1991.