000 00250nam a2200109Ia 4500
008 220201s9999 xx 000 0 eng d
100 _aKRISHNA (MURLI)
245 0 _aAIR POLLUTION & CONTROL
250 _a1ST
260 _bKAUSHAL & CO.
942 _2ddc
999 _c98679
_d98679