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Dorr, John Van Nostrand 1872-,

Cyanidation and concentration of gold and silver ores / By John v. n. dorr and francis l. bosqui - 2 - 511 páginas

Subjects--Topical Terms:
Endurecimiento superficial
Oro--Metalurgia
Plata--Metalurgia

LC Class. No.: TN767 / D67 1950