Coleman, Hywel <br/><br/>
Petroleaum  : upstream 

 - London  ; Heinemann Educational Books  , 1980 
 - 48p. 
<br/><br/><label>ISBN: </label>0435290010  £1.20 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Petroleum
<br/><br/><label>Dewey Class. No.: </label>665.5  / COL