Dyfyniad APA
Noel, T. J., & Smith, D. A. (2011). Colorada: The highest state (2nd ed.). University Press of Colorado.
Dyfyniad Arddull Chicago
Noel, Thomas J., and Duane A. Smith. Colorada: The Highest State. 2nd ed. Boulder, CO: University Press of Colorado, 2011.
Dyfyniad MLA
Noel, Thomas J., and Duane A. Smith. Colorada: The Highest State. 2nd ed. University Press of Colorado, 2011.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.