The politics of extinction : the shocking story of the world's endangered wildlife
1975
Regenstein, Lewis |
Threatened species
Biologie de l'extinction
1985
Lavoie, Jean-Guy |
Protection, conservation, and management of threatened and endangered species in Egypt
1977
Mason, Lawrence N. |
Lackey, Robert T. |
Brown, William Y. |
Thelen, Kyran D. |
Extinction is forever : the status of threatened and endangered species of plants in the Americas and their significance in ecosystems today and in the future
1977
Elias, Thomas S. |
Prance, Ghillean T. |
Principales causes humaines responsables de la raréfaction de la vie sauvage
1985
Lavoie, Jean-Guy |
The ivory-billed woodpecker in Cuba
1957
Lamb, George R. |