(1978). Map showing distribution, composition, and age of late Cenozoic volcanic centers in Colorado, Utah, and Southwestern Wyoming. U.S. Geological Survey.
Chicago-Zitierstil (17. Ausg.)Map Showing Distribution, Composition, and Age of Late Cenozoic Volcanic Centers in Colorado, Utah, and Southwestern Wyoming. Reston, VA: U.S. Geological Survey, 1978.
MLA-Zitierstil (9. Ausg.)Map Showing Distribution, Composition, and Age of Late Cenozoic Volcanic Centers in Colorado, Utah, and Southwestern Wyoming. U.S. Geological Survey, 1978.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.