APA(7版)引用形式
Hays, S. P. (2009). The American people & the national forests: The first century of the U.S. Forest Service. University of Pittsburgh Press.
Chicagoスタイル(17版)引用形式
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(9版)引用形式
Hays, Samuel P. The American People & the National Forests: The First Century of the U.S. Forest Service. University of Pittsburgh Press, 2009.
警告: この引用は必ずしも正確ではありません.