Krevelen, D W Van <br/><br/>
Coal:   Typology-chemistry-physics-constitution 

 - London:   Elsevier Publishing Company,   1961 
 - xviii, 514p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Chemical technology
<br/><br/><label>Subjects--Index Terms: </label>Coal 
<br/><br/><label>Universal Decimal Class. No.: </label>662.641  / K1