000 00246nam a2200121Ia 4500
654 _aCIVI
100 _aBallit.H.E.
250 _a1st Ed.
245 _aSewerage &Sewage Treatment.
260 _bJWS
_c1950
082 _bBAL
999 _c20325
_d20325
655 _aC-12
546 _aText in English
041 _aeng
300 _c22 cm.