| Paper | Date | Date Created | ||
|---|---|---|---|---|
| 1 |
 |
Rocky Mountain Oil and Mining Journal | 1969-12-01 | 2021-02-17T17:32:20Z |
| 2 |
 |
Rocky Mountain Oil and Mining Journal | 1969-12-08 | 2021-02-17T17:32:20Z |
| 3 |
 |
Rocky Mountain Oil and Mining Journal | 1969-12-15 | 2021-02-17T17:32:20Z |
| 4 |
 |
Rocky Mountain Oil and Mining Journal | 1969-12-29 | 2021-02-17T17:32:20Z |
| 5 |
 |
Rocky Mountain Oil and Mining Journal | 1970-12-14 | 2021-02-17T17:32:20Z |