APA-Zitierstil (7. Ausg.)
Hays, S. P. (2009). The American people & the national forests: The first century of the U.S. Forest Service. University of Pittsburgh Press.
Chicago-Zitierstil (17. Ausg.)
Hays, Samuel P. The American People & the National Forests: The First Century of the U.S. Forest Service. Pittsburgh, Pennsylvania: University of Pittsburgh Press, 2009.
MLA-Zitierstil (9. Ausg.)
Hays, Samuel P. The American People & the National Forests: The First Century of the U.S. Forest Service. University of Pittsburgh Press, 2009.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.