R. Trietsch,
“Rada Water Supply and Sanitation Project : final report”. Euroconsult, Arnhem, The Netherlands, p. v, 125 p. : fig., maps, photogr., tabs., 1997.
C. D. van der Wildt, Wegelin-Schuringa, M. H. A., and M. Aroosi, A.,
“Rada Water Supply and Sanitation Project Republic of Yemen : report of the seventh monitoring mission, 16-24 February 1997 : final report”. Netherlands, Ministry of Foreign Affairs, DGIS, The Hague, The Netherlands, p. iii, 30 p., 1997.
R. - BR,
“Recife 2000 : solid waste management”. Brazil (Recife), Public Services Secretariat, Recife, Brazil, p. 12 p. : 1 fig., 6 photogr., 1 tab., 1997.
D. Diacon,
Slum networking : an innovative approach to urban development. Coalville, UK: Building and Social Housing Foundation, 1997, p. x, 82 p. : 11 fig., 25 photogr., 11 tab.
P. Thonart and Totte, A.,
“Stratégie de gestion des déchets solides urbaines en Afrique”. Burkina Faso, Ministere de l'Eau, Direction de Etudes et de la Planification, Ouagadougou, Burkina Faso, pp. 25-42 p. : tab., fig., 1997.
R. M. Kariuki,
“Water and sanitation services in informal settlements : lessons learned from Kibera, Narobi”. UNDP-World Bank, Regional Water and Sanitation Group Eastern and Southern Africa, Nairobi, Kenya, p. ca. 19 p. : boxes, fig., graphs, tabs., 1997.