00602nam a2200181 a 450000500170000000800410001702000150005803500150007305000180008810000180010624501300012426000360025430000190029065000360030965000310034565000330037671000110040920260818114528.0201008s1990    nyua    r     000 0 eng d  a9280600516  a.b12351052 4aTD304.65bB531 aBlack, Maggie10aFrom handpumps to health :bthe evolution of water and sanitation programmes in Bangladesh, India and Nigeria /cMaggie Black  aNew York :bUNICEF,cJuly 1990.  a133 p. :bill. 0aWater-supply, RuralzBangladesh 0aWater-supply, RuralzIndia 0aWater-supply, RuralzNigeria2 aUNICEF