000 003720000a22001690004500
245 _aWater supply
100 _aTwort, A.C.
100 _aHoather, R.C.
100 _aLaw, F.M.
250 _a2nd ed.
260 _aLondon
_bEdward Arnold
_c1974
300 _a478p. : ill., photos
020 _a0713133139
080 _a628.1
_bT8
041 _aEN
942 _cBK
999 _c115465
_d115465