International drinking water supply and sanitation decade 1981-1990 = décennie internationale de l'eau potable et de l'assainissement 1981-1990 = decenio internacional del ague potable y del saneamiento ambiental 1981-1990

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Bibliographic Details
Reference code:MAD/525.16
Corporate Authors: United Nations Development Programme (UNDP); UNICEF; WHO
Type: brochure
Language:Engels
Published: New York: UNDP
Date:1991
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