Philpott, W. (2013). Vacationland: Tourism and environment in the Colorado high country. University of Washington Press.
Chicago-referens (17:e uppl.)Philpott, William. Vacationland: Tourism and Environment in the Colorado High Country. Seattle: University of Washington Press, 2013.
MLA-referens (9:e uppl.)Philpott, William. Vacationland: Tourism and Environment in the Colorado High Country. University of Washington Press, 2013.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.