000 00397cam a22001337a 4500
008 180718b1971 xxu||||| |||| 00| 0 eng d
082 _aX81 Es18
100 _aEscritt, L.B.
245 _aSewers and sewage works : with metric calculations and formulae
_cby L.B. Escritt
260 _aLondon
_bGeorge Allen & unwin
_c1971
300 _a256p
650 _aSewerage.
650 _aSewage --Purification
999 _c414739
_d414739