Coal-bridge to the future  report of the World Coal Study (WOCOL) 
Carroll L.Wilson  
 - Cambridge, Mass.  Ballinger  1980  
 - 247p. 24cm. 
<br/><br/>Includes bibliographical references  
<br/><br/><label>ISBN: </label>0884100995 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Coal
<br/><br/><label>LC Class. No.: </label>TP325