Cyanidation and concentration of gold and silver ores /
Dorr, John Van Nostrand 1872-,
Cyanidation and concentration of gold and silver ores / By John v. n. dorr - 485 páginas
Endurecimiento superficial
Oro--Metalurgia
Plata--Metalurgia
TN767 / D67
Cyanidation and concentration of gold and silver ores / By John v. n. dorr - 485 páginas
Endurecimiento superficial
Oro--Metalurgia
Plata--Metalurgia
TN767 / D67