APA (7th ed.) Citation

Erickson, K. A., & Smith, A. W. (1985). Atlas of Colorado. Colorado Associated University Press.

Chicago Style (17th ed.) Citation

Erickson, Kenneth A., and Albert W. Smith. Atlas of Colorado. Boulder, Colo.: Colorado Associated University Press, 1985.

MLA (9th ed.) Citation

Erickson, Kenneth A., and Albert W. Smith. Atlas of Colorado. Colorado Associated University Press, 1985.