Sedimentary manganese ores /
Varentsov, I. M.,
Sedimentary manganese ores / translated from the russian by scripta technica inc. translation-editor d. b. stewart. - 119 páginas
Minerales de manganeso
Minerales de manganeso--Siberia
TN490.M3 / V3
Sedimentary manganese ores / translated from the russian by scripta technica inc. translation-editor d. b. stewart. - 119 páginas
Minerales de manganeso
Minerales de manganeso--Siberia
TN490.M3 / V3