Quinones et al. 1981, p. 12. Quinones, Ferdinand; Mull, Donald S.; York, Karen; Kendall, Victoria (August 1981). "Hydrology of Area 14, Eastern Coal Province, Kentucky". Open-File Report. Water Resources Investigations. Louisville, Kentucky: United States Geological Survey. doi:10.3133/ofr81137.
Quinones et al. 1981, p. 4. Quinones, Ferdinand; Mull, Donald S.; York, Karen; Kendall, Victoria (August 1981). "Hydrology of Area 14, Eastern Coal Province, Kentucky". Open-File Report. Water Resources Investigations. Louisville, Kentucky: United States Geological Survey. doi:10.3133/ofr81137.
U.S. Geological Survey. National Hydrography Dataset high-resolution flowline data. The National MapArchived March 29, 2012, at the Wayback Machine, accessed June 13, 2011
U.S. Geological Survey. National Hydrography Dataset high-resolution flowline data. The National MapArchived March 29, 2012, at the Wayback Machine, accessed June 13, 2011