Koch Georges S <br/><br/>
Geological problem solvin with Lotus 1-2-3 for exploration and minig geology 
Koch Georges S 
 - Oxford  Pergamon  1990 
<br/><br/><label>ISBN: </label>9780080369419 
<br/><br/><label>Dewey Class. No.: </label>622.1  / KOC.G