Langenkamp, R. D. <br/><br/>
Oil business fundamentals :  exploration, leasing, drilling, production, marketing / 
Robert D. Langenkamp. 
 - Tulsa, Okla. :  PennWell Books,  c1982. 
 - x, 146 p. 
<br/><br/><label>ISBN: </label>0878141987 :  $22.50 
<br/><br/><label>LCCN: </label>91014098     
<br/><br/><label>Subjects--Topical Terms: </label><br/>Petroleum industry and trade.