| Verfasser | Häufigkeit |
|---|---|
| Graham, Martin | 3 |
| Johnson, Howard Wesley 1922- | 3 |
| Cress, Paul | 1 |
| Dirksen, Paul | 1 |
| Graham, Hugh F. | 1 |
| Graham, James Wesley | 1 |
| Narveson, B. H. | 1 |
| Natunewicz, Chester F. | 1 |
| O'neil, E. Wesley | 1 |
| Spencer, Robert | 1 |
| Verfasser | Häufigkeit |
|---|---|
| Graham, Martin | 3 |
| Johnson, Howard Wesley 1922- | 3 |
| Cress, Paul | 1 |
| Dirksen, Paul | 1 |
| Graham, Hugh F. | 1 |
| Graham, James Wesley | 1 |
| Narveson, B. H. | 1 |
| Natunewicz, Chester F. | 1 |
| O'neil, E. Wesley | 1 |
| Spencer, Robert | 1 |