Krevelen, D. W. van (Dirk Willem) <br/><br/>
COAL: TYPOLOGY, CHEMISTRY, PHISICS, CONSTITUTION. 

 - Amsterdam, New York: Elsevier Pub. Co., 1961. 
<br/><br/> First published in 1957 under title: Coal science. 
<br/><br/>Includes bibliographies. 
<br/><br/><label>LCCN: </label>61008866 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Coal.