Johnston, Richard H. <br/><br/>
Hydrologic budgets of regional aquifer systems of the United States for predevelopment and development conditions / 
by Richard H. Johnston. 
 - Washington, DC :  Denver, CO :  U.S. G.P.O. ;  For sale by U.S. Geological Survey, Branch of Information Services,  [1997] 
 - vi, 34 p. :  col. ill., col. map ;  29 cm. 
 - Regional aquifer-system analysis U.S. Geological Survey professional paper ;  1425 .
<br/><br/>Includes bibliographical references (p. 32-34). 
<br/><br/><label>ISBN: </label>0607904275 (pbk.). 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Aquifers--United States.<br/>Water balance (Hydrology)--United States.