First preliminary draft of the list of rare, threatened and endemic plants for the countries of North Africa and the Middle East 1980 Lucas, Gren |
Preprint of 40 red data sheets on rare and threatened species in Europe 1977 Lucas, Gren | Walters, S. M. |
Progress report on the production of a list of threatened and endemic plants for the countries of the Council of Europe 1975 Lucas, Gren | Walters, S. M. |
A preliminary draft for the list of threatened and endemic plants for the countries of Europe 1975 Lucas, Gren | Walters, S. M. |
Supplementary list of threatened and endemic plants for those countries of Europe not covered by the first draft (August 1975) 1975
Report on the vegetation of the Somali Democratic Republic with recommendations for its restoration and conservation 1973 Bally, P. R. O. | Melville, R. |
List of rare, threatened and endemic plants for the countries of Europe 1976 Lucas, Gren | Walters, S. M. |
The IUCN plant red data book : comprising red data sheets on 250 selected plants threatened on a world scale 1978 Lucas, Gren | Synge, Hugh |