1. Hydrology-Flow and storage in groundwater systems;Alley;Science,2002
2. Domenico , P. A. F. W. Schwartz Physical and Chemical Hydrogeology John Wiley and Sons New York 1990
3. Eaton , T. T. Fracture heterogeneity and hydrogeology of the Maquoketa aquitard, southeastern Wisconsin Univ. of Wisconsin-Madison Madison 2002
4. Interstate conflict over ground water; Wisconsin-Illinois;Fetter;Ground Water,1981
5. Fetter , C. W. Jr. Applied Hydrogeology Prentice-Hall Upper Saddle River, NJ 2001