Heath, Ralph C. <br/><br/>
Ground-water regions of the United States / 
by Ralph C. Heath. 
 - [Washington]:   [United States Government Printing Office],   [1984].  
 - ix, 78 p. :  maps, tables ;  28 cm. 
 -  2242 .
<br/><br/>Includes bibliographical references (p. 73-75). 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Groundwater--United States
<br/><br/><label>Dewey Class. No.: </label>553.790973