Rutledge, A. T. <br/><br/>
Estimated hydrologic characteristics of shallow aquifer systems in the Valley and Ridge, the Blue Ridge, and the Piedmont physiographic provinces based on analysis of streamflow recession and base flow / 
by A.T. Rutledge and T.O. Mesko. 
 - Washington :  U.S.Government Printing Office,  1996. 
 - vi, 58 p. :  ill. maps ;  29 cm. 
 - Regional aquifer-system analysis--Appalachian Valley and Piedmont ;  B U.S. Geological Survey professional paper ;  1422 .
<br/><br/>Includes bibliographical references (p. 34-37).