U.S. Dept. of the Interior, Geological Survey ; Open-File Services Section, Western Distribution Branch, U.S. Geological Survey,
Work plan for the Sangamon River basin, Illinois
Open-file report (Geological Survey (U.S.)) ;
Stamer, J. K.
Mades, Dean M.
Illinois. Division of Water Resources.
Geological Survey (U.S.)
by J.K. Stamer and D.M. Mades ; prepared in cooperation with the Illinois Department of Transportation, Division of Water Resources.
Work plan for the Sangamon River basin, Illinois