Economic geology of the platinum metals /
Mertie, John Beaver
Economic geology of the platinum metals / By John B. Mertie, Jr - V, 120 p.: maps (1 fold. in pocket) - Geological Survey professional paper 630 .
Bibliography: p. 101-115
70-604654 //r85
Platinum ores
Economic geology of the platinum metals / By John B. Mertie, Jr - V, 120 p.: maps (1 fold. in pocket) - Geological Survey professional paper 630 .
Bibliography: p. 101-115
70-604654 //r85
Platinum ores