Gray, Forest <br/><br/>
Petroleum production in nontechnical language / 
Gray, Forest. 
 - 2nd ed. 
 - Tulas:  PennWell Books,  1995. 
 - vii,288p;24cm 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>ISBN: </label>0878144501 
<br/><br/><label>Dewey Class. No.: </label>665.5 GRA