| Verfasser | Häufigkeit |
|---|---|
| Anderson, James M. | 1 |
| Anderson, Ruth I. | 1 |
| Blanford, James T. | 1 |
| Dixon, Lloyd S. 1956- | 1 |
| Douglas, Lloyd V. | 1 |
| Muir, Peter C. | 1 |
| Verfasser | Häufigkeit |
|---|---|
| Anderson, James M. | 1 |
| Anderson, Ruth I. | 1 |
| Blanford, James T. | 1 |
| Dixon, Lloyd S. 1956- | 1 |
| Douglas, Lloyd V. | 1 |
| Muir, Peter C. | 1 |