J. E. Beverly,
“Coordination of WASH information activities and exchange with international information centres : trip report no. 2 : Pan American Center for Sanitary Engineers and Environmental Sciences (CEPIS), Lima, Peru, June 20-25, 1982”, vol. no. 48. Water and Sanitation for Health Project (WASH), Arlington, VA, USA, p. i, 41 p.: fig., 1982.
