Cita APA (7a ed.)

Noel, T. J., & Smith, D. A. (1995). Colorado: The Highest State. University Press of Colorado.

Cita Chicago Style (17a ed.)

Noel, Thomas J., y Duane A. Smith. Colorado: The Highest State. Niwot, CO: University Press of Colorado, 1995.

Cita MLA (8a ed.)

Noel, Thomas J., y Duane A. Smith. Colorado: The Highest State. University Press of Colorado, 1995.