APA (7th ed.) Citation

Chronic, J., & Chronic, H. (1972). Prairie, peak and plateau: A guide to the geology of Colorado. Colorado Geolog. Survey.

Chicago Style (17th ed.) Citation

Chronic, John, and Halka Chronic. Prairie, Peak and Plateau: A Guide to the Geology of Colorado. Denver, Colo: Colorado Geolog. Survey, 1972.

MLA (9th ed.) Citation

Chronic, John, and Halka Chronic. Prairie, Peak and Plateau: A Guide to the Geology of Colorado. Colorado Geolog. Survey, 1972.