Hill, C. A. (1987). Geology of Carlsbad Cavern and other caves in the Guadalupe Mountains, New Mexico and Texas. New Mexico Bureau of Mines & Mineral Resources.
Chicago Style (17th ed.) CitationHill, Carol A. Geology of Carlsbad Cavern and Other Caves in the Guadalupe Mountains, New Mexico and Texas. Socorro: New Mexico Bureau of Mines & Mineral Resources, 1987.
MLA (9th ed.) CitationHill, Carol A. Geology of Carlsbad Cavern and Other Caves in the Guadalupe Mountains, New Mexico and Texas. New Mexico Bureau of Mines & Mineral Resources, 1987.
Warning: These citations may not always be 100% accurate.