| Autor | Częstotliwość |
|---|---|
| Foot, M.R.D. (Michael Richard Daniel) | 11 |
| Foot, M. R. D. | 3 |
| Foot, M.R.D | 3 |
| Brownjohn, John 14578 | 2 |
| Foot, M. R. D. 14578 | 2 |
| Lalande, Pierre | 2 |
| Langley, J.M | 2 |
| Templer, Gerald | 2 |
| Davies, Russell | 1 |
| Hunt, Antonia | 1 |
| Jones, R. V. 13415 | 1 |
| MacKenzie, William J. | 1 |
| Millar, James | 1 |
| Ottaway, Liz | 1 |
