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1991
T. F. Bastemeijer and Lee, M. D., Drinking water source protection : a review of environmental factors affecting community water supplies, vol. no. 15. IRC, The Hague, The Netherlands, p. ix, 66 p. : 14 fig., 4 tab., 1991.
WHO -Geneva, CH, World Health Organization and Nairobi, K. E. U. N. E. P. -, Earthwatch Global Environment Monitoring System WHO/UNEP report on water quality : progress in the implementation of the Mar del Plata Action Plan and a strategy for the 1990s. UNEP GEMS/WATER Programme, Geneva, Switzerland, p. 79 p.: fig., tab., 1991.
J. Hukka and Viitasaari, M., Industrial wastewaters '89 Nairobi : proceedings of the first IAWPRC East African regional conference on industrial wastewaters, held in Nairobi, Kenya, 25-28 October 1989. Pergamon, Oxford, UK, p. xiv, 106 p.: fig., tab., 1991.
J. Pickford, Infrastructure, environment, water and people : proceedings of the 17th WEDC Conference, United Nations Centre for Human Settlement (Habitat), Nairobi, Kenya, 19-23 August 1991. Water, Engineering and Development Centre, Loughborough University of Technology, WEDC, Loughborough, UK, p. xvi, 302 p.: fig., tab., 1991.
T. F. Bastemeijer and Lee, M. D., La protection des sources d'eau potable. IRC, The Hague, The Netherlands, p. 21 p.: fig., tab., 1991.
L'eau c'est la vie. Tome 1. Des faits et des suggestions : un projet conjoint PNUE/AMGE pour l'environnement : la protection des ressources en eau douce par l'action et la prise de conscience des femmes, de la jeunesse et des enfants. p. 96 p.: drwngs., fig., ill., photogr., 1991.
L'eau c'est la vie. Tome 2. Materiel educatif : un projet conjoint PNUE/AMGE pour l'environnement : la protection des ressources en eau douce par l'action et la prise de conscience des femmes, de la jeunesse et des enfants. p. 104 p.: drwngs., fig., ill., photogr., 1991.
F. R. Compagnie Paris, L'eau et les collectivites locales. Paris, France: Moniteur, 1991, p. 332 p. : fig., photogr., tab.
M. F. Baldwin, Natural resources of Sri Lanka : conditions and trends. Natural Resources, Energy and Science Authority of Sri Lanka, Colombo, Sri Lanka, p. xi, 280 p.: fig., tab., maps, photogr., 1991.
N. G. N. E. S. T. - Ibadan, Nigeria's threatened environment : a national profile. Ibadan, Nigeria: Nigerian Environmental Study / Action Team, 1991, p. vi, 288 p.: fig., photogr., tab.
L. F. Requena and Myton, B. A., Surface and groundwater contamination in selected watersheds in Southwestern El Salvador, vol. no. 354. Environmental Health Project (EHP), Arlington, VA, USA, p. xvii, 152 p.: 1 fig., 4 maps, photogr., 16 tables, 1991.
F. R. U. N. E. P. Indus Paris, Tanneries and the environment : a technical guide to reducing the environmental impact of tannery operations, vol. no. 4. Paris, France: UNEP Industry and Environment Programme Activity Centre, 1991, p. 119 p.: fig., tab.
M. Yhdego, Urban environmental degradation in Tanzania, Environment and urbanization, pp. p. 147-152: tab., 1991.
C. Singh, Water and health for all?, Waterlines, an international journal of water, sanitation and waste, pp. p. 29-32: 4 photogr., 1991.
H. Vretta-Kouskoleka, Water is life. Volume 1. Facts and incentives : a joint UNEP / WAGGGS environment project on the protection of freshwater resources through action and by creating awareness among women youth and children. World Association of Girl Guides and Girl Scouts, London, UK, p. 95 p.: drwngs., fig., ill., photogr., 1991.
1990
Aspects of sustainability in a Swiss village water supply scheme. p. various paging, 1990.
C. K. Sharma, Chemical pollution of the soil and groundwater in the Kingdom of Nepal, vol. no. 173. IAHS Press, Institute of Hydrology, Wallingford, UK, pp. p. 391-397: 3 fig., 4 tab., 1990.
M. L. U. N. I. C. E. F. - Bamako and Bamako, M. L. Sene- Conse, Etude d'une strategie d'approvisionnement en eau potable pour le PCAN : rapport final. Sene-Conseils, S.l., p. iii, 150 p.: 28 tab., 1990.
WHO. Regional Office for Europe -Copenhagen, DK, EURO, Pamplona, E. S. Foundation, and ES, N. (State). D., Framework programme on environmental health care for primary health care teams in Navarra. Copenhagen, Denmark: World Health Organization Regional Office for Europe, 1990, p. 243 p.
F. Valiron, Gestion des eaux : principes, moyens, structures, 2nd rev. ed.nd ed. Paris, France: Presses de l'Ecole Nationale des Ponts et Chaussees, 1990, p. 350 p.: 107 fig., 72 tab.
F. R. Medecins s Paris, L'or bleu. Etat d'Urgence, Paris, France, p. Video (18 min.): VHS, 1990.
G. J. G. Kok, The Loukkos project : water pollution and re-use in river basins in Northern Morocco, Land + water international : NEDECO magazine on water, transport, infrastructure and environment, pp. p. 8-11: photogr., map., 1990.
D. Yohalem, Programming guide for guinea worm eradication, vol. no. 329. Water and Sanitation for Health Project (WASH), Arlington, VA, USA, p. viii, 100 p., 1990.
K. E. I. N. F. O. T. E. R. R. A. Nairobi, Thesaurus of environmental terms. UNEP INFOTERRA, Nairobi, Kenya, 1990.
U. G. U. N. I. C. E. F. - Kampala, UG, U. Ministry o, and UG, U. Ministry o, Water and sanitation for health : a handbook for U-two handpump mechanics. Uganda, Ministry of Health, Entebbe, Uganda, p. 40 p.: drawings, 1990.

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