| 其他書名 | Being the Report of the Conference Under the Title of The Species Concept in Its Relation to the British Flora, Held in 1954 ... |
| 出版 | Botanical Society of the British Isles, 1955 |
| URL | http://books.google.com.hk/books?id=vPVMAQAACAAJ&hl=&source=gbs_api |