| Verfasser | Häufigkeit |
|---|---|
| Smith, Clifford W. 1946- | 11 |
| Brickley, James A. | 10 |
| Zimmerman, Jerold L. | 10 |
| Zimmerman, Alan S. 1942- | 5 |
| Anderson, Sylvia | 4 |
| Barrett, Ray 1927-2009 | 4 |
| Blythe, Jim | 4 |
| Coleman, Elizabeth | 4 |
| Dyneley, Peter | 4 |
| Finn, Christine | 4 |
| Graham, David | 4 |
| Gray, Barry | 4 |
| Holliday, David | 4 |
| Lane, David | 4 |
| Read, John | 4 |
| Rimmer, Shane | 4 |
| Robertson, Donald | 4 |
| Shutt, Ernest | 4 |
| Shutt, Judith | 4 |
| Turner, Mary | 4 |