| Auteur(s) | Picton, B.E. |
| Jaar | 1993 |
| Titel | A field guide to the shallow-water Echinoderms of the British Isles. Immel Publishing Limited. |
| Auteur(s) | Picton, B.E. |
| Jaar | 1993 |
| Titel | A field guide to the shallow-water Echinoderms of the British Isles. Immel Publishing Limited. |