Biblio

WASH -Arlington, VA, US, «Evaluation methods for community rural water supply and sanitation projects in developing countries : a synthesis of available information», vol. no. 4. Water and Sanitation for Health Project (WASH), Arlington, VA, USA, p. 29 p., 1981.

WASH -Arlington, VA, US, «Water supply and sanitation in rural development : proceedings of a conference for private and voluntary organizations : held at the Pan American Health Organization, Washington, D.C., December 1-4, 1981», vol. no. 14. Water and Sanitation for Health Project (WASH), Washington, DC, USA, p. 191 p., 1981.