(1989). Geology of the Colorado Plateau: Grand Junction to Denver, Colorado, June 30 - July 7, 1989. American Geophysical Union.
Chicago-Zitierstil (17. Ausg.)Geology of the Colorado Plateau: Grand Junction to Denver, Colorado, June 30 - July 7, 1989. Washington, DC: American Geophysical Union, 1989.
MLA-Zitierstil (9. Ausg.)Geology of the Colorado Plateau: Grand Junction to Denver, Colorado, June 30 - July 7, 1989. American Geophysical Union, 1989.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.