Consultation on downstream petrochemical industrie 

 - Austria  United Nations           1993 
 - 31p.  cm. 
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Petroleum Industry
<br/><br/><label>Dewey Class. No.: </label>X9(F555).1(X).N9, N3