Richards, Robert H. <br/><br/>
Textobook of ore dressing. 

 - New York :  McGraw-Hill,  1940. 
 - 608 p. :  il. ;  23 cm 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mineralogía<br/>Constituyente mineral<br/>Minerales
<br/><br/><label>Index Terms--Genre/Form: </label><br/>Libro
<br/><br/><label>Universal Decimal Class. No.: </label>622.7