Water, people and waste in developing countries : 7th WEDC Conference, 23-25 September 1981 : proceedings /
WEDC Conference(7th :1981 :Loughborough)
Ball, Susan,1950-
Pickford, John,1924-
Loughborough WEDC Group, Department of Civil Engineering, University of Technology Loughborough
1982
Underdeveloped areas
Underdeveloped areas