Azval, Frank J. <br/><br/>
Water Infiltration control to Achieve Mine Water Pollution Control / 
Frank J. Azval and John D. Robins 
 - Washington, D.C. :  Environmental Protection Agency,  1973 
 - 185 p. ;  28 cm. 
 - Water pollution control research series .
<br/><br/> EPA-R2-73-142 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Environment--Pollution control<br/>Mine Water--Pollution control
<br/><br/><label>Dewey Class. No.: </label>628.1683