Geological Survey (U.S.), Colorado. Office of the State Engineer, Robson, S. G., & Graham, G. (1996). Geohydrology of the North Park area, Jackson County, Colorado. The Survey.
Chicago Style (17th ed.) CitationGeological Survey (U.S.), Colorado. Office of the State Engineer, Stanley G. Robson, and Glenn Graham. Geohydrology of the North Park Area, Jackson County, Colorado. [Reston, Va.]: The Survey, 1996.
MLA (9th ed.) CitationGeological Survey (U.S.), et al. Geohydrology of the North Park Area, Jackson County, Colorado. The Survey, 1996.
Warning: These citations may not always be 100% accurate.