Criteria for listing species on the CITES appendices and the IUCN Red List : a technical workshop 1992
Puerto Rican parrot, Amazona vittata. Population viability analysis and recommendations 1989 Flesness, Nathan R. | Lacy, R. C. | Seal, Ulysses S. |
Documentation, conventions/soft law concerning species, ecosystems and the conservation of biological diversity = concernant la conservation des espèces, des écosystèmes et de la diversité biologique 1990
Comment on the proposed listing of the African elephant on the threatened species list and possible subsequent regulation of ivory 1978 Enright, Kenneth N. |
Supplementary list of threatened and endemic plants for those countries of Europe not covered by the first draft (August 1975) 1975