Yen, Teh Fu <br/><br/>
The role of trace metals in petroleum 

 - Michigan  Ann Arbor Science Publishers  1975 
 - viii,221p.  24cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Petroleum
<br/><br/><label>LC Class. No.: </label>TP691.Y46