000 00604nam a2200193Ia 4500
919 _a109275
082 _a628.3
_bN50
100 _aHardenberg W A
245 _aSewage and Sewage Treatment
_b
_cby W A Hardenberg
260 _bInt. Text Book
_c1950
300 _a467P.
690 _aSewage Treatment
999 _c105224
_d105224