Hartman , Howard L <br/><br/>
Introductory mining engineering 
Howard L. Hartman 
 - New York  Wiley & Sons  1987 
 - 633 p. : ill. ; 25 cm. 
<br/><br/><label>ISBN: </label>0471820040 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mining engineering