| Paper | Date | Page | Article Title | Type | ||
|---|---|---|---|---|---|---|
| 1 |
 |
Rocky Mountain Oil and Mining Journal | 1970-09-21 | issue | ||
| 2 |
 |
Rocky Mountain Oil and Mining Journal | 1969-09-15 | issue | ||
| 3 |
 |
Rocky Mountain Oil and Mining Journal | 1969-09-08 | issue | ||
| 4 |
 |
Rocky Mountain Oil and Mining Journal | 1969-09-01 | issue | ||
| 5 |
 |
Rocky Mountain Oil and Mining Journal | 1970-09-14 | issue | ||
| 6 |
 |
Rocky Mountain Oil and Mining Journal | 1970-09-28 | issue | ||
| 7 |
 |
Rocky Mountain Oil and Mining Journal | 1969-09-29 | issue | ||
| 8 |
 |
Rocky Mountain Oil and Mining Journal | 1969-09-22 | issue |