1. New flora of Algeria and meridional desertic regions (in French);Quezel,1962
2. Geobotanical foundations of the Middle East;Zohary,1973
3. Temperate deserts and semi-deserts of Afghanistan and Iran;Breckle,1983
4. Biology and ecology of principal taxons (in French);LeFloc'h,1989
5. Elements of botany and phyto-ecology (in French);Nabli,1989