Biblio

P. Roark and Tomaro, J., “Internal evaluation of USAID assistance to the rural water supply and sanitation sector in Zaire”, vol. no. 313. Water and Sanitation for Health Project (WASH), Arlington, VA, USA, p. vii, 69 p.: map, photogr., tab., 1990.

P. Roark, Aubel, J., Hodin, K., Kankarti-Sant'Anna, O., and Marfa, A., “Final evaluation of the USAID/Togo Rural Water Supply and Sanitation Project”, vol. no. 228. Water and Sanitation for Health Project (WASH), Arlington, VA, USA, p. xii, 95 p.: fig., photogr., tab., 1988.