| Verfasser | Häufigkeit |
|---|---|
| Andrews, Glenda | 2 |
| Phillips, Steven | 2 |
| Wilson, William H. | 2 |
| Baldrica, Alice M. | 1 |
| DeBunch, Patricia A. | 1 |
| Fowler, Don D. 1936- | 1 |
| Halford, Graeme S. | 1 |
| Halford, Graeme S. 1937- | 1 |
| Verfasser | Häufigkeit |
|---|---|
| Andrews, Glenda | 2 |
| Phillips, Steven | 2 |
| Wilson, William H. | 2 |
| Baldrica, Alice M. | 1 |
| DeBunch, Patricia A. | 1 |
| Fowler, Don D. 1936- | 1 |
| Halford, Graeme S. | 1 |
| Halford, Graeme S. 1937- | 1 |