Richards, Robert Hallowell  1844, <br/><br/>
Textbook of ore dressing / 
By Robert h. Richard Charles e. locke and reinhard schuhmann. 
 - 3 
 - 608 páginas 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Preparación mecánica de minerales
<br/><br/><label>LC Class. No.: </label>TN500  / R53