APA (7th ed.) Citation

Rocky Mountain Association of Geologists, Rocky Mountain Association of Geologists. Symposium, Stone, D. S., & Johnson, K. S. (1986). New interpretations of northwest Colorado geology. Rocky Mountain Association of Geologists.

Chicago Style (17th ed.) Citation

Rocky Mountain Association of Geologists, Rocky Mountain Association of Geologists. Symposium, Donald S. Stone, and Katherine S. Johnson. New Interpretations of Northwest Colorado Geology. Denver, Colo.: Rocky Mountain Association of Geologists, 1986.

MLA (9th ed.) Citation

Rocky Mountain Association of Geologists, et al. New Interpretations of Northwest Colorado Geology. Rocky Mountain Association of Geologists, 1986.