1999
Water and Sanitation Program - East Asia and the Pacific -Jakarta, ID, WSP-EAP,
«"Whose voice?" : "whose choice?"». Water and Sanitation Program - East Asia and the Pacific, WSP-EAP, Jakarta, Indonesia, p. video () : VHS, PAL, 1999.
S. Cairncross,
«Why promote sanitation?». Water and Environmental Health at London and Loughborough (WELL), Loughborough, UK, p. 3 p. : boxes, 1999.
F. Anderson,
«A wider World Wide Web : global usability and water websites», in
Symposium on Water Resources and the World Wide Web : Seattle, Washington, December 5-9, 1999, 1999, p. ca. 15 p.
Water and Sanitation Program -Washington, DC, US, WSP,
«Willing to pay, but unwilling to charge : do 'willingness-to-pay studies' make a difference?». Water and Sanitation Program, WSP, Washington, DC, USA, p. 8 p., 1999.
D. Midmore y Deng-lin, W.,
«Work that water! : hydroponics made easy»,
Waterlines, an international journal of water, sanitation and waste, pp. p. 28-30 : 2 photogr., 3 tab., 1999.
«World of water 2000 : the past, present and future». PennWell Publishing, Tulsa, OK, USA, p. 166 p. : photogr., 1999.
1998
Institute of Water and Sanitation Development -Harare, ZW, IWSD, TREND -Kumasi, GH, Training, Research and Networking for Development, TREND -Kumasi, GH, Training, Research and Networking for Development, NETWAS -Nairobi, KE, Network for Water and Sanitation, CREPA -Ouagadougou, BF, Centre Regional pour l'Eau Potable et l'Assainissement a Faible Cout, y National Community Water and Sanitation Training Institute -Sovenga, ZA, NCWSTI,
«10th ITN Africa conference : 30th November - 3rd December 1998, Nairobi Kenya : water and environmental sanitation in low income urban areas : conference pre-prints». Network for Water and Sanitation International (NETWAS), Nairobi, Kenya, p. ca. 150 p., 1998.
A. R. Manuel, Rashid, H. U., Akhtaruzzaman, M., y Gijselhart, H.,
«18 district towns project joint review». Netherlands Embassy, Bangladesh, Dhaka, Bangladesh, p. 86 p. + appendices (10 p.) : fig., tab., 1998.
S. Hanchett,
«18 District towns project : women in development and hygiene education impact study : annexes». Bangladesh, Department of Public Health Engineering (DPHE), Dhaka, Bangladesh, p. ca 250 p. : drwngs., tab., 1998.
WHO -Geneva, CH, World Health Organization, Geneva, C. H. I. L. O. -, y Nairobi, K. E. U. N. E. P. -,
Acetone, vol. no. 207. Geneva, Switzerland: World Health Organization (WHO), 1998, p. xviii, 159 p. : fig., tab.
L. Ash y Rettie, M. J.,
«Achieving competitiveness through cultural change»,
Journal American Water Works Association, pp. p. 47-56 : 1 fig., 1 tab., boxes, photogr., 1998.
Con Sustain 6,
«Activities of the organizations of the United Nations system in the field of freshwater resources : report of the secretary general», in
Report of the expert group meeting on strategic approaches to freshwater management : Harare, Zimbabwe, 27 - 30 January 1998, 1998, Advanced unedited copy., p. 16 p. : 2 tab.
J. L. Eggers y Bangert, C. E.,
«Activity-based costing»,
Journal American Water Works Association, pp. p. 63-69 : 4 fig., 1998.
WHO. Regional Office for Africa -Harare, ZW, WHO / AFRO,
«Africa 2000 : initiative for water supply and sanitation : Brazzaville declaration two years after : progress report». World Health Organization Regional Office for Africa, Harare, Zimbabwe, p. 96 p + addendum (25 p.) : 5 boxes, 1 fig., map, 3 tab., 1998.
J. Ramirez, Fajardo, D., Casas, F., y Torres, R.,
Agro y medio ambiente. Bogota, Colombia: CEREC, 1998, p. 150 p.