| Paper | Date | Page | Article Title | Type | ||
|---|---|---|---|---|---|---|
| 1 |
 |
Rocky Mountain Oil and Mining Journal | 1970-04-06 | issue | ||
| 2 |
 |
Rocky Mountain Oil and Mining Journal | 1970-04-13 | issue | ||
| 3 |
 |
Rocky Mountain Oil and Mining Journal | 1970-04-27 | issue | ||
| 4 |
 |
Rocky Mountain Oil and Mining Journal | 1970-04-20 | issue | ||
| 5 |
 |
Rocky Mountain Oil and Mining Journal | 1969-04-07 | issue | ||
| 6 |
 |
Rocky Mountain Oil and Mining Journal | 1969-04-28 | issue | ||
| 7 |
 |
Rocky Mountain Oil and Mining Journal | 1969-04-14 | issue | ||
| 8 |
 |
Rocky Mountain Oil and Mining Journal | 1969-04-21 | issue |