| Auteur(s) | Waller, M. |
| Jaar | 2018 |
| Titel | A beginner's vegetative guide to orchids of the British Isles |
| Uitgever | Natural History Museum |
| Link | https://www.fscbiodiversity.uk/idsignpost/beginner%E2%80%99s-vegetative-guide-orchids-british-isles |
| Auteur(s) | Waller, M. |
| Jaar | 2018 |
| Titel | A beginner's vegetative guide to orchids of the British Isles |
| Uitgever | Natural History Museum |
| Link | https://www.fscbiodiversity.uk/idsignpost/beginner%E2%80%99s-vegetative-guide-orchids-british-isles |