Hartman, Howard L. <br/><br/>
Introductory mining engineering / 
Howard L. Hartman. 
 - New York :  John Wiley & Sons,  1987. 
 - 633 p. 
<br/><br/>
<br/><br/><label>ISBN: </label>0471820040 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mining engineering