Author Details for "Perkins, E.T."
| Title | Author(s) | Publication | Year | Online Access |
|---|---|---|---|---|
| Catalog of recorded exploration drilling and mine workings in the Tri-state zinc-lead district, Missouri, Kansas, and Oklahoma | Brichta, L.C.; and Perkins, E.T. | U.S. Bureau of Mines, Information Circular no. 7713, 24 pages | 1955 | N/A |