United States. Environmental Protection Agency, Geological Survey (U.S.), & Mills, P. C. (1999). Potentiometric levels and water quality in the aquifers underlying Belvidere, Illinois, 1993-96. U.S. Dept. of the Interior, U.S. Geological Survey.
Chicago Style (17th ed.) CitationUnited States. Environmental Protection Agency, Geological Survey (U.S.), and Patrick C. Mills. Potentiometric Levels and Water Quality in the Aquifers Underlying Belvidere, Illinois, 1993-96. Urbana, Ill. (221 Broadway Ave., Urbana 61801): U.S. Dept. of the Interior, U.S. Geological Survey, 1999.
MLA (9th ed.) CitationUnited States. Environmental Protection Agency, et al. Potentiometric Levels and Water Quality in the Aquifers Underlying Belvidere, Illinois, 1993-96. U.S. Dept. of the Interior, U.S. Geological Survey, 1999.