| Paper | Date | Page | Article Title | Type | ||
|---|---|---|---|---|---|---|
| 51 |
 |
Rocky Mountain Oil and Mining Journal | 1969-04-14 | 3 | page | |
| 52 |
 |
Rocky Mountain Oil and Mining Journal | 1969-04-14 | 4 | page | |
| 53 |
 |
Rocky Mountain Oil and Mining Journal | 1969-04-28 | 6 | page | |
| 54 |
 |
Rocky Mountain Oil and Mining Journal | 1969-04-21 | 2 | page | |
| 55 |
 |
Rocky Mountain Oil and Mining Journal | 1969-04-07 | 5 | page | |
| 56 |
 |
Rocky Mountain Oil and Mining Journal | 1969-04-21 | 3 | page | |
| 57 |
 |
Rocky Mountain Oil and Mining Journal | 1969-04-28 | 8 | page | |
| 58 |
 |
Rocky Mountain Oil and Mining Journal | 1969-04-28 | 1 | page | |
| 59 |
 |
Rocky Mountain Oil and Mining Journal | 1969-04-28 | 2 | page | |
| 60 |
 |
Rocky Mountain Oil and Mining Journal | 1969-04-14 | 7 | page | |
| 61 |
 |
Rocky Mountain Oil and Mining Journal | 1969-04-28 | 4 | page | |
| 62 |
 |
Rocky Mountain Oil and Mining Journal | 1969-04-21 | 6 | page | |
| 63 |
 |
Rocky Mountain Oil and Mining Journal | 1969-04-07 | 6 | page | |
| 64 |
 |
Rocky Mountain Oil and Mining Journal | 1969-04-21 | 4 | page |