Sampson, Anthony. <br/><br/>
The seven sisters : the great oil companies and the world they made  

 - New York:  Vikings,  1975. 
 - xv, 334p. 
<br/><br/><label>ISBN: </label>067063591x 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Petroleum Industry <br/>Trade