APA ציטוט
Hays, S. P. (2009). The American people & the national forests: The first century of the U.S. Forest Service. University of Pittsburgh Press.
Chicago Style (17th ed.) Citation
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.
ציטוט MLA
Hays, Samuel P. The American People & the National Forests: The First Century of the U.S. Forest Service. University of Pittsburgh Press, 2009.
אזהרה: ציטוטים אלה לעיתים לא מדויקים ב 100%.