| Paper | Date | Date Created | ||
|---|---|---|---|---|
| 1 |
 |
Rocky Mountain Oil and Mining Journal | 1970-02-02 | 2021-02-17T17:32:20Z |
| 2 |
 |
Rocky Mountain Oil and Mining Journal | 1970-02-09 | 2021-02-17T17:32:20Z |
| 3 |
 |
Rocky Mountain Oil and Mining Journal | 1970-02-16 | 2021-02-17T17:32:20Z |
| 4 |
 |
Rocky Mountain Oil and Mining Journal | 1970-02-23 | 2021-02-17T17:32:20Z |