000 00432 a2200145 4500
020 _a0250400294
080 _a628.34
_bM269A
245 1 _aApplied chemistry of wastewater treatment programmed learning
_bUnit VI
_cby K. H. Mancy
260 _aMichigan
_bAnn Arbor Science
_c1973
650 _aWastewater Treatment
100 1 _aMancy, K. H.
300 _av. p.
040 _aIARI, New Delhi
901 _a130784
999 _c77819
_d77819