Machamer, Jerome F. <br/><br/>
A Working Classification Of Manganese Deposits 

 -  SEGEMAR  1987 
<br/><br/> Mining Magazine (octubre) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Artsub
<br/><br/><label>Subjects--Index Terms: </label>Mineral/es: Manganeso