For a more complete listing of USGS reports, go to USGS Publications Warehouse, and search for "Indiana and *Topic*".
Neff, B.P., Day, S.M., Piggott, A.R. and Fuller, L.M. 2005. Base flow in the Great Lakes Basin. US Geological Survey Scientific Investigations Report 2005-5217.
Eberts. S.M and George L.L. 2000. Regional ground-water flow and geochemistry in the Midwestern basins and arches aquifer system in parts of Indiana, Ohio, Michigan, and Illinois. US Geological Survey Professional Paper 1423C.
Peters, J.G. 1986. Description and comparison of selected models for hydrologic analysis of ground-water flow, St. Joseph River Basin, Indiana. US Geological Survey Water-Resources Investigations Report 86-4199.