Topic study 2 petrol from coal  : prepared by an open university cource team 

 - Keynes  ; The Open University Press  , 1985 
 - 27p. 
<br/><br/><label>ISBN: </label>0335161928  £5.95 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Petroleum
<br/><br/><label>Dewey Class. No.: </label>665.5  / TOP