University of Michigan. Center for Research on Economic Development, Permanent Inter-State Committee for Drought Control in the Sahel, & Sahel Club. Équipe Commercialisation, prix, stockage. (1977). Marketing, price policy and storage of food grains in the Sahel: A survey. CRED.

University of Michigan. Center for Research on Economic Development, Permanent Inter-State Committee for Drought Control in the Sahel, and prix Sahel Club. Équipe Commercialisation. Marketing, Price Policy and Storage of Food Grains in the Sahel: A Survey. [Ann Arbor]: CRED, 1977.

University of Michigan. Center for Research on Economic Development, et al. Marketing, Price Policy and Storage of Food Grains in the Sahel: A Survey. CRED, 1977.