APA (7th ed.) Citation

Oesterle, D. A., & Collins, R. B. (2011). The Colorado state constitution. Oxford University Press.

Chicago Style (17th ed.) Citation

Oesterle, Dale A., and Richard B. Collins. The Colorado State Constitution. Oxford ; New York: Oxford University Press, 2011.

MLA (8th ed.) Citation

Oesterle, Dale A., and Richard B. Collins. The Colorado State Constitution. Oxford University Press, 2011.