APA (7th ed.) Citation

Chronic, H. (1984). Time, rocks, and the Rockies: A geologic guide to roads and trails of Rocky Mountain National Park. Mountain Press Pub. Co..

Chicago Style (17th ed.) Citation

Chronic, Halka. Time, Rocks, and the Rockies: A Geologic Guide to Roads and Trails of Rocky Mountain National Park. Missoula: Mountain Press Pub. Co., 1984.

MLA (9th ed.) Citation

Chronic, Halka. Time, Rocks, and the Rockies: A Geologic Guide to Roads and Trails of Rocky Mountain National Park. Mountain Press Pub. Co., 1984.