000 00283nam a2200121Ia 4500
654 _aCIVI
100 _aKeeper, C.E.
245 _aSawage-Treatment Works
260 _bMcGraw Hill International Book Company
_aLondon
_c1950
082 _bKEE
300 _a320p.
999 _c13337
_d13337
041 _aeng
655 _aC-16
546 _aText in English
300 _c23 cm.