APA-ийн эшлэл(7 дахь хэвлэлт)

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

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

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

MLA -ийн эшлэл (9 дэх хэвлэлт)

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