APA (7th ed.) Citation

(1989). Geology of the Colorado Plateau: Grand Junction to Denver, Colorado, June 30 - July 7, 1989. American Geophysical Union.

Chicago Style (17th ed.) Citation

Geology of the Colorado Plateau: Grand Junction to Denver, Colorado, June 30 - July 7, 1989. Washington, DC: American Geophysical Union, 1989.

MLA (9th ed.) Citation

Geology of the Colorado Plateau: Grand Junction to Denver, Colorado, June 30 - July 7, 1989. American Geophysical Union, 1989.