Waring 1915, p. 45. Waring, Gerald Ashley (1915). Springs of California. U.S. Geological Survey Water Supply Paper. Vol. 338. U.S. Government Printing Office. doi:10.3133/wsp338.
Waring 1915, pp. 45–46. Waring, Gerald Ashley (1915). Springs of California. U.S. Geological Survey Water Supply Paper. Vol. 338. U.S. Government Printing Office. doi:10.3133/wsp338.