Biblio

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

R. Middleton, «Letters to the editor : [reaction to article "Wood : a local option for handpump bearings" in Waterlines, October 1993]», Waterlines, an international journal of water, sanitation and waste, p. p. 5, 1994.

R. Middleton, Jennings, L., y Joyce, S. D., «Evaluation guidelines for training in water and sanitation», vol. no. 70. Water and Sanitation for Health Project (WASH), Arlington, VA, USA, p. v, 38 p.: fig., 1991.