1. M. P. Bergeron , 1981 . Effect of Irrigation Pumping on the Ground-Water System in Newton and Jasper Counties, Indiana. United States Geological Survey Water-Resources Investigation Report 81-38, 73 pp.
2. Geotrans, Inc. , 1983 . Assessment of Prudential Pumping on the Ground-Water System of Jasper and Newton Counties, Indiana, 105 pp.