Claude Jacques ed. edt IRD Grouzis Michel ed. edt IRD Milleville Pierre ed. edt IRD text book fre text/pdf reformatted digital access specialized GEOGRAPHIE PHYSIQUE VEGETATION GEOGRAPHIE HUMAINE HYDRODYNAMIQUE PRODUCTION VEGETALE ECOSYSTEME DESERTIFICATION SYSTEME DE CULTURE ELEVAGE SOCIOLOGIE RURALE ECONOMIE RURALE BURKINA FASO ZONE SAHELIENNE 082ECOSYS 098RURAL1 Paris ORSTOM 1991 241 241 241 https://www.documentation.ird.fr/hor/fdi:36348 2-7099-1067-5 [F A36348] https://www.documentation.ird.fr/hor/fdi:36348 https://horizon.documentation.ird.fr/exl-doc/pleins_textes/divers11-03/36348.pdf IRD - Base Horizon / Pleins textes 1992-07-27 2024-01-15 fdi:36348 fre