NELSON, W .L. <br/><br/>
GUIDE TO REFINERY OPERATING COSTS; PROCESS 

 - S.E. 
 - S.L. Sin Pais  S.E.  1970 
<br/><br/> CLASIFICACION: 665.538 
<br/><br/><label>LCCN: </label>14336 
<br/><br/><label>Dewey Class. No.: </label>665.538