Biblio

P. Wurzel and de Rooy, C., “Boreholes versus handpumps : addressing a mis-match”, Waterfront, pp. p. 6-7, 20-21: photogr., 1993.

P. Wurzel, “Maximising and sustaining health through water supplies and sanitation : the Pakistan experience”, Water quality bulletin, pp. p. 3-10, 62: photogr., tab., 1990.

D. E. Walling, Foster, S. S. D., and Wurzel, P., “Challenges in African hydrology and water resources”, vol. no. 144. International Association of Hydrological Sciences, Wallingford, UK, 1984.