Coal, classification, coalification, mineralogy, trace-element chemistry, and oil and gas potential / 
edited by P.C. Lyons and B. Alpern. 
 - Amsterdam :  Elsevier,  1989. 
 - xiv, 678 p. :  ill., maps. 
<br/><br/> "Reprinted from the International journal of coal geology, volume 13, no. 1-4." 
<br/><br/><label>ISBN: </label>0444880119 
<br/><br/><label>LCCN: </label>90035116     
<br/><br/><label>Subjects--Topical Terms: </label><br/>Coal--Classification.<br/>Coal--Composition.<br/>Coal--Geology