| Verfasser | Häufigkeit |
| Thorpe, Geoffrey L. |
2 |
| Thorpe, James Ernest 1915-2009 |
2 |
| Beery, Wallace |
1 |
| Carli, Philip |
1 |
| DeLaMotte, Marguerite |
1 |
| Emerson, John |
1 |
| Fairbanks, Douglas |
1 |
| Fleming, Victor |
1 |
| Gall, G. A. E. |
1 |
| Hecker, Jeffrey E. |
1 |
| Hecker, Jeffrey E. 1959- |
1 |
| Israel, Robert |
1 |
| Lannan, J. E. |
1 |
| Louis, Laura J. |
1 |
| MacGann, William C. |
1 |
| Nash, C. E. |
1 |
| Powell, Paul |
1 |
| Reed, Ted |
1 |
| Sauer, Rodney |
1 |
| Swartz, Greg |
1 |