Chyi, L. Lynn <br/><br/>
Recent advances in coal geochemistry 

 - Boulder, CO  Geological Society of America  1990 
 - 99 p.  ilus., láms. 
 - Special Paper. Geological Society of America  n.248 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>CARBON<br/>GEOQUÍMICA
<br/><br/><label>Universal Decimal Class. No.: </label>553.94:550.4/Ch99