Chaiken, Robert F. <br/><br/>
Controlled burnout of wasted coal on abandoned coal mine lands 

 - Washington, D.C.  U.S. Bureau of Mines  1980 
 - 23 p. 
 - Edición especial .
<br/><br/><label>Subjects--Topical Terms: </label><br/>CARBON<br/>GASIFICACION<br/>MEDIO AMBIENTE<br/>MINAS ABANDONADAS
<br/><br/><label>Subjects--Geographic Terms: </label><br/>ESTADOS UNIDOS