References

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Anderson, K. (1993) Ground Water Handbook, Dublin Ohio: National Groundwater Assoc.

Australian Drilling Industry Training Committee Ltd (1992) Australian Drilling Manual 3^rd edition", Macquarie Centre: Australian Drilling Industry Training Committee Ltd, ISBN 0-949279-20X.

Astier, J. and N. Patterson (1987). Hydrogeological Interest of Aeromagnetic Maps in Crystalline and Metamorphic Areas. In: Exploration '87 Proceedings, Applications of Geophysics and Geochemistry, pp. 732-745.

Brush, R. (197?) "Wells Construction: Hand Dug and Hand Drilled", US Peace Corps, Washington DC.

Cairncross, S. (1987) "The Benefits of Water Supply", Developing World Water, Hong Kong: Grosvenor Press Int'l, pp. 30-34.

Dijon, R. (1981) "Ground Water Exploration in Crystalline Rocks in Africa", Proceedings of the American Society of Civil Engineers, May 11-15, 1981.

Driscoll, F. (1986) Groundwater and Wells, St. Paul: Johnson Division

Farquharson, F. and A. Bullock (1992) "The Hydrology of Basement Complex Regions of Africa with Particular Reference to Southern Africa", pp. 59-76 in Wright, E. and Burgess, W. (eds) Hydrogeology of Crystalline Basement Aquifers in Africa, Geological Society Special Publication No. 66, London.

Hamann, M. (1992) "Utilization of Small Mud Rotary Drilling Rigs for Development of Safe, Village-Level Groundwater Resources", Paper presented at the 5th African Water Technology Conference, Nairobi, Kenya, February, 1992.

Hazell, J.R.T., C.R. Cratchley, and C.R.C. Jones (1992). The Hydrogeology of Crystalline Aquifers in Northern Nigeria and Geophysical Techniques Used in their Exploration. In: Hydrogeology of Crystalline Basement Aquifers in Africa (edited by E.P. Wright and W.G. Burgess), Geological Society Special Publication No. 66, pp. 155-182.

Houston, J. (1995). Exploring Africa's Ground Water Resources. International Ground Water Technology, Vol. 1, No. 1, pp. 29-32.

Ives, K and A. Coad (1987) "Selecting Filter Media", Developing World Water, Hong Kong: Grosvenor Press Int'l, pp. 202-203.

Key, R. (1992) "An Introduction to the Crystalline Basement of Africa", pp. 29-57 in Wright, E. and Burgess, W. (eds) Hydrogeology of Crystalline Basement Aquifers in Africa, Geological Society Special Publication No. 66, London.

Lovett, W. (1985) "Chapter 2 - Safety on the Job", pp. 9-12 in Water Well Driller's Beginning Training Manual, Worthington, OH: National Water Well Association, ISBN 1-56034-049-5.

Ministry of Environment (1987) Water Wells & Ground Water Supplies in Ontario, ISBN 0-7729-1010-3 WRB

Moffat, B. (1988) "Efficient Water Wells", Developing World Water", Hong Kong: Grosvenor Press Int'l, pp. 36-37.

National Water Well Association and Plastics Pipe Institute (1981) Manual on the Selection and Installation of Thermoplastic Water Well Casing, Worthington, OH, 64pp.

Patnaik, S (1987) "Small Iron Removal Plants", pp. 218-219 in Developing World Water, Hong Kong: Grosvenor Press International.

Reynolds, J.M. (1987). The Role of Surface Geophysics in the Assessment of Regional Groundwater Potential in Northern Nigeria. In: Planning and Engineering Geology (edited by M.G. Culshaw, F.G. Bell, J.C. Cripps, and M. O'Hara), Geological Society Engineering Geology Special Publication No. 1, pp.185-190.

Richard, Y. (1987) "Disinfection in the Treatment of Drinking Water", pp.215-217 in Developing World Water, Hong Kong: Grosvenor Press International.

Schreurs, R. (1988) "Well Development is Critical", Developing World Water, Hong Kong: Grosvenor Press Int'l.

Selby, M.J. (1985). Earth's Changing Surface. Clarendon Press, Oxford, 607pp.

United Nations (1981) "Rural Water Supply", United Nations Department of Technical Cooperation for Development, Report of a United Nations Interregional Seminar, Uppsala, Swede, 6-17 October, 1980.

U.S. Agency for International Development (1982) "Designing Bored or Augured Wells", Water for the World, Technical Note No. RWS.2.D.4

U.S. Agency for International Development (1982) "Manufacturing Hand Pumps Locally", Water for the World, Technical Note No. RWS.4.P.6

U.S. Agency for International Development (1982) "Selecting a Well Site", Water for the World, Technical Note No. RWS.2.P.3

U.S. Agency for International Development (1982) "Selecting Pumps", Water for the World, Technical Note No. RWS.4.P.5

U.S. Agency for International Development (1982) "Testing the Yield of Wells", Water for the World, Technical Note No. RWS.2.C.7