1990
P. De Colombani, Irshaid, H. M., en de Melo, C. M. Meira,
“Integrating primary health care and primary environmental care in the health district of Pau da Lima (Salvador da Bahia, Brazil) : final report : field-work in Salvador da Bahia (Brazil), August-October 1990”. Associazione Italiana per la Solidarieta tra i Popoli, Rome, Italy, p. ca. 120 p.: fig., tab., 1990.
A. W. Wright en Bakalian, A. E.,
“Intermediate sanitation : solids-free sewerage”, vol. no. WS-3. World Bank, Infrastructure and Urban Development Department, Washington, DC, USA, p. 3 p., 1990.
A. M. Wright en Bakalian, A. E.,
“Intermediate sewerage : cost-efficient sewerage”, vol. no. WS-4. World Bank, Infrastructure and Urban Development Department, Washington, DC, USA, p. 4 p.: fig., 1990.
P. Roark en 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.
G. B. Environmen Albans,
“International environmental technology”. Environmental Technology (Publications), St. Albans, UK, 1990.
S. S. Schmidt,
“International standardization in water quality”,
Aqua : journal of water supply research and technology, pp. p. 6-16: tab., 1990.
C. Guinchat, Menou, M., en Blanquet, M. - F.,
Introduction generale aux sciences et techniques de l'information et de la documentation, 2nd enl. ed.e ed. Paris, France: UNESCO, 1990, p. 543 p.: fig., tab.
C. Bartone, Bernstein, J. D., en Wright, F.,
“Investments in solid waste management : opportunities for environmental improvement”, vol. WPS405. World Bank, Policy, Research and External Affairs Complex, Washington, DC, USA, p. v, 85 p.: 6 fig., 5 tab., 1990.
“IRC International Water and Sanitation Centre Annual Report 1989”. IRC, The Hague, The Netherlands, p. 83 p. : fig., maps, photogr., 1990.
“January 1990”,
VITA news. 1990.
P. Wirojanagud en Vanvarothorn, V.,
“Jars and tanks for rainwater storage in rural Thailand”,
Waterlines, an international journal of water, sanitation and waste, pp. p. 29-32: photogr., tab., 1990.
D. McNeill, Kruger, A., en Klepsvik, I.,
“Joint review of TAN 055 Kigoma water programme”. NORAD, Norwegian Agency for Development Cooperation, Oslo, Norway, p. 38 p.: tab., 1990.
T. Katko, Hukka, J., en Seppala, O.,
“Kenya water sector : discussion paper”. Tampere University of Technology, Institute of Water and Environmental Engineeri, Tampere, Finland, p. 95 p.: fig., tab., 1990.
K. E. Kefinco - Kakamega, Helsinki, F. I. F. I. N. N. I. D. A. -, en KE, K. Ministry o,
“Kenya-Finland Western Water Supply Programme : annual report Jul 89 - Jun 90”. Kefinco, Helsinki, Finland, p. 42 p. + annexes (ca. 70 p.) : fig., tab., 1990.
F. I. F. I. N. N. I. D. A. - Helsinki, Helsinki, F. I. Kefinco -, en KE, K. Ministry o,
“Kenya-Finland Western Water Supply Programme : quarterly review Jul 90 - Sep 90”. FINNIDA, Ministry of Foreign Affairs, Helsinki, Finland, p. 19 p. + annexes (ca. 48 p.) : fig., tab., 1990.