| Paper | Date | Page | Article Title | Type | ||
|---|---|---|---|---|---|---|
| 1 |
 |
Rocky Mountain Oil and Mining Journal | 1969-11-17 | issue | ||
| 2 |
 |
Rocky Mountain Oil and Mining Journal | 1969-11-24 | issue | ||
| 3 |
 |
Rocky Mountain Oil and Mining Journal | 1969-11-03 | issue | ||
| 4 |
 |
Rocky Mountain Oil and Mining Journal | 1970-11-09 | issue | ||
| 5 |
 |
Rocky Mountain Oil and Mining Journal | 1969-11-10 | issue | ||
| 6 |
 |
Rocky Mountain Oil and Mining Journal | 1970-11-16 | issue | ||
| 7 |
 |
Rocky Mountain Oil and Mining Journal | 1970-11-02 | issue |