1979-80 worldwide refining and gas processing directory 

 - 37th ed.  
 - Tulsa:   PPC Books,   1979 
 - 381p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Chemical technology
<br/><br/><label>Subjects--Index Terms: </label>Gas  
<br/><br/><label>Universal Decimal Class. No.: </label>66.07/.074(100)(058)  / L9