Cita APA (7th ed.)

Pickering, J. H. (2005). America's Switzerland: Estes Park and Rocky Mountain National Park, the growth years. University Press of Colorado.

Cita Chicago (17th ed.)

Pickering, James H. America's Switzerland: Estes Park and Rocky Mountain National Park, the Growth Years. Boulder: University Press of Colorado, 2005.

Cita MLA (9th ed.)

Pickering, James H. America's Switzerland: Estes Park and Rocky Mountain National Park, the Growth Years. University Press of Colorado, 2005.