CRS-Guidelines for the Development of small-scale rural watsan in East Africa-2005.pdf2005 // 52 pages // Dennis B. Warner, Carmela Green Abate. // ISBN 978 0 203 77214-0#Books of reference#CRS·up.raindrop.io·Jul 7, 2026CRS-Guidelines for the Development of small-scale rural watsan in East Africa-2005.pdf