Philpott, W. (2013). Vacationland: Tourism and environment in the Colorado high country. University of Washington Press.
Chicago-viite (17. p.)Philpott, William. Vacationland: Tourism and Environment in the Colorado High Country. Seattle: University of Washington Press, 2013.
MLA-viite (9. p.)Philpott, William. Vacationland: Tourism and Environment in the Colorado High Country. University of Washington Press, 2013.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.