000			005360000a22001810004500
245			_aWater treatment and sanitation : a handbook of simple methods for rural areas in developing countries
100			_aMann, H.T. _94227
100			_aWilliamson, D. _918906
250			_a3rd rev. ed.
260			_aLondon _bIntermediate Technology Publications _c1982
300			_a96p. : ill.
020			_a090303123X
080			_a628.16:628.3 _bM3
650			_aWATER SUPPLY
650			_aWATER TREATMENT
041			_aEN
942			_cBK _01
999			_c68871 _d68871