International Secretariat for Water -Montreal, Que, CA, Secretariat International de l'Eau, Tilonia, I. N. Social Wor, and Manila, P. H. Approtech,
“Report of the International Seminar on Drinking Water and Sanitation for Grassroots Organizations, Tilonia, India, November 21-25, 1993 [papers]”. International Secretariat for Water, Montreal, Que, Canada, p. 19 papers (ca. 150 p.), 1993.