German, E. R., Volusia County, & Geological Survey. (2008). Volusia Blue Spring: A hydrological treasure. U.S. Dept. of the Interior, U.S. Geological Survey.
Chicago Style (17th ed.) CitationGerman, E. R., Volusia County, and Geological Survey. Volusia Blue Spring: A Hydrological Treasure. [Reston, Va.]: U.S. Dept. of the Interior, U.S. Geological Survey, 2008.
MLA (8th ed.) CitationGerman, E. R., et al. Volusia Blue Spring: A Hydrological Treasure. U.S. Dept. of the Interior, U.S. Geological Survey, 2008.
Warning: These citations may not always be 100% accurate.