The clean efficient use of coal and lignite :  its role in energy, environment and life :  Hong Kong, 30th November-3rd December 1993 : conference proceedings / 
International Energy Agency ... [et al.] 
 - Paris :  OECD,  1994 
 - 1183 p. :  ill. ;  30 cm. 
<br/><br/>Includes bibliographical references 
<br/><br/><label>ISBN: </label>9264142436  US 150.00 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Coal--Congresses<br/>Lignite--Congresses