Collier, Charles R. <br/><br/>
Influences of strip mining on the hydrologic environment of parts of Beaver creek basin Kentucky, 1955-59 / 
by Charles R. Collier. 
 -- Washington :   United States Government Printing Office,   1964 
 - 83 p. + map. -- 
 (Geological Survey Professional Paper  ;  427-B).
<br/><br/><label>Subjects--Topical Terms: </label><br/>Hidrología
<br/><br/><label>Universal Decimal Class. No.: </label>556