UN, 1993. Earth Summit. Agenda 21: Programme of Action for Sustainable Development. The United Nations Programme of Action from Rio (UNCED).

UN, 2003. Water for People - Water for Life - The United Nations World Water Development Report. UNESCO Publishing / Berghahn Books

UNEP, March 2002. Atlas of International Freshwater Agreements. Compiled under the direction of Aaron T. Wolf, Oregon State University, in collaboration with the United Nations Environment Programme and the Food and Agriculture Organization of the United Nations.

UNESCO, 2003. Courrier 3 October 2003, Water for People, Water for Life.

WHO, 2002. Water and Health in Europe. WHO Regional Publications. European Series No 93. Bartram, J., Thyssen, N., Gowers, A., Pond, K., Lack, T. A Joint Report from the European Environment Agency and the WHO Regional Office for Europe.

WMO, 2003. The Rhine River: Lifeline of Large Cities in the Basin. Case study prepared by Manfred Spreafico of the Swiss National Hydrological and Geological Survey and Hans Kienholz of the Department of Geography, University of Berne.

WWF, 2003. WWF’s Water and Wetland Index. Critical issues in water policy across Europe. November 2003.

Press Release: Water transfers are increasing the water crisis, Brussels. 6/05/2003.

Lovelock, James, 1919. The revenge of Gaia : why the Earth is fighting back - and how we can still save humanity?

Wilson A.L. The chemical analysis of water. London Royal Society of Chemistry 1986.

Ryan, Thomas. Rural water supplies, design, network analysis and construction.

O Connor, Oisín. The engineering design of Sligo's water supply.

O Connor, Kieran. Sligo environs water supply project a study of its objectives and design Investigations of animal health problems at Askeaton, County Limerick. Soil, herbage, feed and water. Wexford : E.P.A., 2001.

McDonald, Peter, 1926. Animal nutrition. Assessment of the suitability of the utilization of rainwater harvesting sys. 2003

Rain and stormwater harvesting in rural areas. 1983

Rainwater harvesting: the collection of rainfall and run-off in rural areas. 1986

Safe water from every tap : improving water service to small communities. 1997

Nutrients and toxic substances in water for livestock and poultry : a report of the Subcommittee on Nutrient and Toxic Elements in Water / Committee on Animal Publisher. Washington, D.C. : National Academy of Sciences, 1974.

3rd World Congress on Genetics Applied to Livestock Production, 16-22 July, 1986, Lincoln, Nebraska. Vol. IX, Introduction, breeding programs for dairy and beef cattle, sheep and goats, water buffalo.

Nitrogen, electrolytes, water and energy metabolism. M. Rechcigl, Jr. Comparative animal nutrition ; vol.3 Southorn, Neil. Farm water supplies : planning and installation. 1995