000 002800000a22001210004500
245 _aChemistry and unit operations in sewage
100 _aBarnes, D.
100 _aWilson, F.
260 _aLondon
_bApplied Science
_c1978
080 _a628.3
_bB3
041 _aEN
942 _cBK
999 _c115329
_d115329