Author Details for "Shaffer, H.L."
| Title | Author(s) | Publication | Year | Online Access |
|---|---|---|---|---|
| Concretions in the Dakota sandstone | Shaffer, H.L. | Compass vol. 17, no. 2, pp. 87-90 | 1937 | N/A |
| Title | Author(s) | Publication | Year | Online Access |
|---|---|---|---|---|
| Concretions in the Dakota sandstone | Shaffer, H.L. | Compass vol. 17, no. 2, pp. 87-90 | 1937 | N/A |