References
- FAO (1979): Land, food and people, No. 4. (Feb 1979). Rome: FAO.
- Hewes, L. (1974): Rural development: world frontiers. Ames: Iowa State University Press.
- Famoriyo, S. & Raza, M.R. (1982): The Green revolution in Nigeria. Prospects for agricultural development. Food Policy 1982, 27–38.