APA (7e ed.) Bronvermelding
Steen, H. K. (2004). The U.S. Forest Service: A history (Centennial edition.). Forest History Society : University of Washington Press.
Chicago (17e ed.) Bronvermelding
Steen, Harold K. The U.S. Forest Service: A History. Centennial edition. Durham, North Carolina ; Seattle, Washington: Forest History Society : University of Washington Press, 2004.
MLA (9e ed.) Bronvermelding
Steen, Harold K. The U.S. Forest Service: A History. Centennial edition. Forest History Society : University of Washington Press, 2004.
Let op: Deze citaties zijn niet altijd 100% accuraat.