Nettoyage et réhabilitation des puits | |||||||
Cleaning and rehabilitating hand-dug wells Limpieza y desinfección de pozos artesianos position paper coll. WHO Technical Notes for Emergencies n° 1 Jul 2013 ; 4 pages , Ed. WEDC - Loughborough WHO - Genève Downloadable format: PdF (1 550 ko) PdF (900 ko) Downloadable from the publisher
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