Water and sanitation for all : partnerships and innovations : selected papers of the 23rd WEDC Conference, Durban, South Africa, 1997 /
WEDC Conference(23rd :1997 :Durban, South Africa)
Pickford, John,1924-
Water, Engineering and Development Centre.
London : Intermediate Technology Publications in association with The Water, Engineering and Development Centre,
1998.
Includes bibliographies.
Water-supply
Water quality management
Water