Cita APA (7a ed.)
Kopas, P. S. (2007). Taking the air: Ideas and change in Canada's national parks. UBC Press.
Cita Chicago Style (17a ed.)
Kopas, Paul Sheldon. Taking the Air: Ideas and Change in Canada's National Parks. Vancouver: UBC Press, 2007.
Cita MLA (9a ed.)
Kopas, Paul Sheldon. Taking the Air: Ideas and Change in Canada's National Parks. UBC Press, 2007.
Precaución: Estas citas no son 100% exactas.