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2. Club du Sahel (Ed.), 1998. Preparing for the Future. A Vision of West Africa in the Year 2020. OECD, Paris (See also the 14 WALTPS working papers and the national case studies, which are listed in the bibliography attached to that study. Also included is a list of reference documents) (http://www.oecd.org/sah/).
3. Club du Sahel, Municipal Development Program, 1998–2000. ECOLOC Case Studies and ECOLOC Methodological Hand book (available in French and English). OECD, Paris. (http://www.oecd.org/sah/)
4. Cordell, D., Gregory, J.W., Piché, V., 1996. Hoe and Wage: A Social History of a Circular Migration System in West Africa. Westview, Boulder, CO.
5. Structural Change in Gambian Agriculture;Decosse,1992