Luedke, R. G., & Smith, R. L. (1978). Map showing distribution, composition, and age of late Cenozoic volcanic centers in Colorado, Utah, and southwestern Wyoming. U.S. Geological Survey.
Chicago Style (17th ed.) CitationLuedke, Robert George, and Robert L. Smith. 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 (8th ed.) CitationLuedke, Robert George, and Robert L. Smith. Map Showing Distribution, Composition, and Age of Late Cenozoic Volcanic Centers in Colorado, Utah, and Southwestern Wyoming. U.S. Geological Survey, 1978.
Warning: These citations may not always be 100% accurate.