Leffler, William L <br/><br/>
Petroleum refining in nontechnical language/ William L. Leffler. 

 - 4th ed. 
 -  Tulsa, Okla. : PennWell, c  2008 
 - xvi, 259 p. : ill.    24 cm. Includes index. 
<br/><br/><label>ISBN: </label>9781593701581 
<br/><br/><label>LC Class. No.: </label>TP692.3 .B873 2008 
<br/><br/><label>Dewey Class. No.: </label>TP692.3 .B873 2008 
<br/><br/><label>National Library of Medicine Call No.: </label>TP692.3 .B873 2008