000 00460 a2200133 4500
080 _a614.77:546
_bC519
245 1 _aChemical oxygen demand (Dichormate Value) of polluted and waste wasters 1977
_bMethods for the examination of wasters and associated materials
260 _aLondon
_bHer Majesty's Stationery Office
_c1978
650 _aWater Pollution
100 _a
_d
300 _a14 p.
040 _aIARI, New Delhi
901 _a146846
999 _c76521
_d76521