Dorr, John V. N. <br/><br/>
Cyanidation and concentration of gold and silver ores. 

 - New York :  McGraw-Hill,  1936. 
 - 485 p. :  il. ;  21 cm 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Cianuración<br/>Oro<br/>Plata
<br/><br/><label>Index Terms--Genre/Form: </label><br/>Libro
<br/><br/><label>Universal Decimal Class. No.: </label>669.21