| Verfasser | Häufigkeit |
|---|---|
| Bird, Alan F. | 6 |
| Bird, Jean | 2 |
| Pauleikhoff, Daniel | 2 |
| Spaide, Richard F. | 2 |
| Bird, Alan | 1 |
| Bird, Alan C. | 1 |
| Bird, Chloe E. 1964- | 1 |
| Fremont, Allen | 1 |
| Hanson, Mark Alan | 1 |
| Holz, Frank G. | 1 |
| Holz, Frank G. 1962- | 1 |
| Verfasser | Häufigkeit |
|---|---|
| Bird, Alan F. | 6 |
| Bird, Jean | 2 |
| Pauleikhoff, Daniel | 2 |
| Spaide, Richard F. | 2 |
| Bird, Alan | 1 |
| Bird, Alan C. | 1 |
| Bird, Chloe E. 1964- | 1 |
| Fremont, Allen | 1 |
| Hanson, Mark Alan | 1 |
| Holz, Frank G. | 1 |
| Holz, Frank G. 1962- | 1 |