Craig, James <br/><br/>
Ore microscopy and ore petrography 

 - 2nd ed. 
 - New York  John Wiley & Sons  1994 
 - xiv,434p.  23 cm. 
<br/><br/><label>ISBN: </label>0471115991 
<br/><br/><label>Dewey Class. No.: </label>552.8,  / D, cra