| Auteur(s) | Horsley, C., Whitehouse, A. and Falk, S. |
| Jaar | 2013 |
| Titel | A report on the status of threatened bees in the region with recommendations for conservation action. South West Bees Project. Buglife The Invertebrate Conservation Trust. |
| Auteur(s) | Horsley, C., Whitehouse, A. and Falk, S. |
| Jaar | 2013 |
| Titel | A report on the status of threatened bees in the region with recommendations for conservation action. South West Bees Project. Buglife The Invertebrate Conservation Trust. |