REPORT ON THE MINERAL EXPLORATION IN THE BOLIVAR AREA 

 - 1ST ED. 
 - Japón  JAPAN INTERNATIONAL COOPERATION AGENCY  1989 S.L.  METAL MINING AGENCY OF JAPAN 
 - 348 
<br/><br/> DONADO POR ING NUÑEZ DEL ARCO; SE ADJUNTAN PLANOS 
<br/><br/><label>LCCN: </label>80093 
<br/><br/><label>Dewey Class. No.: </label>622.34