Merklein Helmut A <br/><br/>
Energy economics 

 - Houston  Gulf Publishing Company          1977 
 - ix,230p.  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).73.N7, L7