Coal utilization : 
an international forum on new technologies. 
 - Paris :  UNESCO,  1983. 
 - 134 p. :  ill. ;  24 cm. 
<br/><br/>327  327 
<br/><br/><label>ISBN: </label>92-3-102081-1  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Coal -- Congresses.
<br/><br/><label>Dewey Class. No.: </label>553.2 / U2c