Hylland, M. D., & Mulvey, W. E. (2003). Geologic hazards of Moab-Spanish Valley, Grand County, Utah ([1st ed.].). Utah Geological Survey.
Citace podle Chicago (17th ed.)Hylland, Michael D., a William E. Mulvey. Geologic Hazards of Moab-Spanish Valley, Grand County, Utah. [1st ed.]. Salt Lake City: Utah Geological Survey, 2003.
Citace podle MLA (9th ed.)Hylland, Michael D., a William E. Mulvey. Geologic Hazards of Moab-Spanish Valley, Grand County, Utah. [1st ed.]. Utah Geological Survey, 2003.
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