Deul, Maurice <br/><br/>
Mine water research: neutralization  
Deul, Maurice 
 - Washington  Bureau of mines  1967 
 - Report Investigation  6987 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>neutralización<br/>agua de mina
<br/><br/><label>Universal Decimal Class. No.: </label>658.567.5 : 622.51 (47)