The metallurgy of gold :
Eissler, M.
The metallurgy of gold : A practical treatise on the metallurgical treatment of gold-bearing ores including the assaying, melting, and refining of gold / By m. eissler - 5 # ed, enl and re-arranged - xxvi, 638 páginas
Oro--Metalurgia
TN670 / E57 1900
The metallurgy of gold : A practical treatise on the metallurgical treatment of gold-bearing ores including the assaying, melting, and refining of gold / By m. eissler - 5 # ed, enl and re-arranged - xxvi, 638 páginas
Oro--Metalurgia
TN670 / E57 1900