| Verfasser | Häufigkeit |
|---|---|
| Izett, Glen A. | 7 |
| Bergendahl, M. H. | 1 |
| Bryant, Bruce | 1 |
| Bunker, Carl Maurice | 1 |
| Cobban, William A. | 1 |
| Davis, R. E. | 1 |
| Davis, Robert Ellis 1924- | 1 |
| Gill, James R. | 1 |
| Honey, James G. | 1 |
| Izett, G. A. | 1 |
| Mehnert, Harald H. | 1 |
| Naeser, Charles W. | 1 |
| Obradovich, John D. | 1 |
| Peterman, Zell E. | 1 |