Abbott, C., Leonard, S. J., & Noel, T. J. (2013). Colorado: A history of the Centennial State (5th ed.). University Press of Colorado.

Abbott, Carl, Stephen J. Leonard, and Thomas J. Noel. Colorado: A History of the Centennial State. 5th ed. Boulder, Colo.: University Press of Colorado, 2013.

Abbott, Carl, et al. Colorado: A History of the Centennial State. 5th ed. University Press of Colorado, 2013.