Hydrologic effects of stress-relief fracturing in an Appalachian valley / 
by Granville G. Wyrick and James W. Borchers 
 - Washington, D. C. :  United States Government Printing Office,  1981 
 - 51 p. :  ill., maps. ;  28 cm. 
 - Geological Survey water-supply paper ;  2177 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Hydrology--United States<br/>Watersheds--United States
<br/><br/><label>Dewey Class. No.: </label>551.480973