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World Health Organization. Community Water Supply and Sanitation Unit ,  [The International Drinking Water Supply and Sanitation Decade : review of national progress as at December 1983]

International Drinking Water Supply and Sanitation Decade ,  World Health Organization. Community Water Supply and Sanitation Unit ,  [Catalogue of external support, 3d ed]

Inter-Agency Round Table on Water Supply and Sanitation Eastern and Southern Africa (1988: Harare, Zimbabwe) ,  World Health Organization. Community Water Supply and Sanitation Unit ,  International Drinking Water Supply and Sanitation Decade ,  [Inter-Agency Round Table on Water Supply and Sanitation, Eastern and Southern Africa, Harare, 28-30 November 1988 : report of a meeting of representatives of external support agencies]

World Health Organization. Community Water Supply and Sanitation Unit ,  International Drinking Water Supply and Sanitation Decade ,  [Directives pour la préparation et l' organisation d' une réunion consultative pour le secteur eau potable et assainissement]

World Health Organization. Community Water Supply and Sanitation Unit ,  International Drinking Water Supply and Sanitation Decade ,  Lineamientos para la preparaci'on y organizaci'on de una reuni'on consultiva del Decenio

WHO Meeting of Experts on the Reuse of Effluents: Methods of Wastewater Treatment and Health Safeguards ,  World Health Organization ,  [La réutilisation des effluents : méthodes de traitement des eaux usées et mesures de protection sanitaire, rapport d' une réunion d' experts de l' OMS [tenue à Genève du 30 novembre au 6 décembre 1971]]