| Verfasser | Häufigkeit |
|---|---|
| Allen, Joyce E. | 2 |
| Allen, Joan W. | 1 |
| Allen, Kathleen R. | 1 |
| Allen-Smith, Joyce E. | 1 |
| Bowman, Katy | 1 |
| Economy, Peter | 1 |
| Edwards, Paul | 1 |
| Edwards, Sarah | 1 |
| Epstein, Lita | 1 |
| Faber, Joyce | 1 |
| Halcrow, Harold G. | 1 |
| Hiam, Alexander | 1 |
| Holden, Greg | 1 |
| Jaret, Peter | 1 |
| Liebl, Elisabeth | 1 |
| Mazero, Joyce G. | 1 |
| McMurtry, Jeanette Maw | 1 |
| Muehlhausen, Jim | 1 |
| Nelson, Bob | 1 |
| Peterson, Steven | 1 |