Kopas, P. S. (2007). Taking the air: Ideas and change in Canada's national parks. UBC Press.
Chicagoスタイル(17版)引用形式Kopas, Paul Sheldon. Taking the Air: Ideas and Change in Canada's National Parks. Vancouver: UBC Press, 2007.
MLA(9版)引用形式Kopas, Paul Sheldon. Taking the Air: Ideas and Change in Canada's National Parks. UBC Press, 2007.
警告: この引用は必ずしも正確ではありません.