World coal study <br/><br/>
Coal - bridge to the future. report of world coal study 
World coal study , Carroll L. Wilson  
 - Cambridge  Ballinger Publishing Co.  1980 
 - xxv,247p  Charts, tables,  
<br/><br/><label>ISBN: </label>0884100995 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Coal 
<br/><br/><label>Dewey Class. No.: </label>333.82  / WOR