APA Citation

Bowles, S., & Pickering, J. H. (1991). Parks and Mountains of Colorado: A Summer Vacation in the Switzerland of America, 1868. University of Oklahoma.

Chicago Style Citation

Bowles, Samuel, and James H. Pickering. Parks and Mountains of Colorado: A Summer Vacation in the Switzerland of America, 1868. University of Oklahoma, 1991.

MLA Citation

Bowles, Samuel, and James H. Pickering. Parks and Mountains of Colorado: A Summer Vacation in the Switzerland of America, 1868. University of Oklahoma, 1991.

Warning: These citations may not always be 100% accurate.