Context

Context of Potentiometric surface of the upper Floridan Aquifer in the St. Johns River Water Management District and vicinity, Florida, September 2008, by Sandra L. Kinnaman and Joann F. Dixon ; U.S. Department of the Interior, U.S. Geological Survey ; prepared in cooperation with St. Johns River Water Management District, South Florida Water Management District, [and the] Southwest Florida Water Management District, (electronic resource)
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