Bibliography – Main Keys for "zinc***ores"
| Title | Authors | Publication | Year | Actions |
|---|---|---|---|---|
| Tri-state zinc-lead ore reserves | Ruhl, Otto | U.S. Bureau of Mines, Report of Investigations no. 3922, 7 pages | 1946 | N/A |
| Zinc-lead ore reserves of the Tri-state district, Missouri-Kansas-Oklahoma | Ruhl, Otto; Allen, S.A.; and Holt, S.P. | U.S. Bureau of Mines, Report of Investigations no. 4490, 59 pages | 1949 | N/A |
Found 2 result(s).