Geological Survey (U.S.), United States. Bureau of Land Management, & Kellogg, K. S. (2004). Geology of Gunnison Gorge National Conservation Area, Delta and Montrose counties, Colorado. U.S. Geological Survey.
Chicago Style (17th ed.) CitationGeological Survey (U.S.), United States. Bureau of Land Management, and Karl S. Kellogg. Geology of Gunnison Gorge National Conservation Area, Delta and Montrose Counties, Colorado. [Denver, Colo.]: U.S. Geological Survey, 2004.
MLA (9th ed.) CitationGeological Survey (U.S.), et al. Geology of Gunnison Gorge National Conservation Area, Delta and Montrose Counties, Colorado. U.S. Geological Survey, 2004.
Warning: These citations may not always be 100% accurate.