Hydrology, water quality, and causes of changes to vegetation in the vicinity of the Spring Bluff Nature Preserve, Lake County, Illinois, May 2007-August 2008 [electronic resource] / by Robert T. Kay ... [et al.] ; prepared in cooperation with the Lake County Forest Preserve District and the Illinois State Geological Survey.
Imprint
Reston, Va.. : U.S. Dept. of the Interior, U.S. Geological Survey, 2010.