Korbel, Petr  <br/><br/>
The Complete Encyclopedia Of Minerals  
/ by Petr Korbel & Milan Novak  
 - Netharlands:   REBO,  1999. 
 - 296 p. 
<br/><br/><label>ISBN: </label>9036615062  
<br/><br/><label>Dewey Class. No.: </label>549.03   / KOR/T