Biblio

J. M. Kalbermatten, Middleton, R., and Schertenleib, R., “Household-centred environmental sanitation”. Water and Sanitation in Developing Countries (SANDEC), Duebendorf, Switzerland, p. 17 p. : boxes, 2 fig., 1999.

J. M. Kalbermatten, Julius, D. S., and Gunnerson, C. G., “Appropriate technology for water supply and sanitation : technical and economic options”, vol. no. 1. World Bank, Washington, DC, USA, p. iii, 124 p. : fig., tab., 1980.

J. M. Kalbermatten and Gunnerson, C. G., “Appropriate technology in water supply and waste disposal”. American Society of Civil Engineers, New York, NY, USA, p. x, 270 p.: fig., tab., 1979.