ED BY. MANGER LEIF LEIF MANGER AND ABDEL GHAAFFAR M ,AHMED.
PASTORALISTS AND ENVIRONMENT: EXPERIENCES FROM THE GREATER HORN OF AFRICA :PROCEEDINGS OF THE REGIONAL WORKSHOPSON AFRICAN DRYLANDS, ADDIS ABABA AND JINJA:
- ADDIS ABABA, ORGANIZATION FOR SOCIAL SCIENCE RESEARCH IN EASTERN AND SOUTHERN AFRICA 2000.