8. References

Critchley, W. 1991. Looking After Our Land, Soil and Water Conservation in Dryland Africa. Oxfam, London. 84 p.

Critchley, W.R.S., C.P. Reij, and S.D. Turner 1992. Soil and Water Conservation in Sub-Saharan Africa - Towards Sustainable Production by the Rural Poor. International Fund for Agricultural Development.

DANIDA. 1991. Copenhagen Report: Implementation Mechanisms for Integrated Water Resources Development and Management. Danish International Development Agency, Copenhagen. 60 p.

Engelman, R. and P. Le Roy 1993. Sustaining Water. Population and the Future of Renewable Water Supplies. Population Action International. 56 p.

Falkenmark, M., J. Lundqvist, and C. Widstand 1990. Water Scarcity - An Ultimate Constraint in Third World Development. Linkoping University, Stockholm.

ICWE (International Conference on Water and the Environment) 1992. International Conference on Water and the Environment: Development Issues for the 21st Century. World Meteorological Organization, Geneva. 55 p.

Lee, M.D. and J.T. Visscher 1990. Water Harvesting in Five African Countries. IRC Occasional Paper No 14. 108 p.

UNDP (United Nations Development Programme) 1990. Global Consultation on Safe Water and Sanitation for the 1990s. The New Delhi Statement. United Nations, New York. 7 p.

UNSO (United Nations Sudano-Sahelian Office) 1992. Assessment of Desertification and Drought in the Sudano-Sahelian Region. 1985-1991. United Nations Sudano-Sahelian Office, New York. 102 p.