Howard, Herbert Allen <br/><br/>
External diseconomies of bituminous coal surface mining  : a case study of eastern 

 - Indiana Univiersity 
 - Ann Arbor  University Microfilms International  1969 
 - xi, 223 p. 
<br/><br/><label>ISBN: </label>254809 
<br/><br/><label>Dewey Class. No.: </label>622.15  / HOW