International petroleum encyclopedia 1980 

 - Talsa, Okla. :  Penn Well Pub. Co.,  1980 
 - 464 
<br/><br/><label>Subjects--Topical Terms: </label><br/>PETROLEUM INDUSTRY AND TRADE<br/>PETROLEUM INDUSTRY AND TRADE--DIRECTORIES
<br/><br/><label>LC Class. No.: </label>HD9560.5  / I573 1980