000 00331nam a2200133Ia 4500
008 220709b1970 xxu||||| |||| 00| 0 eng d
082 _a628.53
_bG72M
245 _aMethods for the detection of toxic substances in air
_bNo.1. Hydrogen sulphide
260 _c1970
630 _aAir pollution control
964 _bEnglish
964 _ePaper Fo
942 _cBooks
906 _a16090
981 _a1970.
983 _aMethods for the detection of toxic substances in air : No.1. Hydrogen sulphide
999 _c15948
_d15948