000 00421nam a2200133Ia 4500
008 210828s9999 xx 000 0 und d
082 _aD65 .Q124
100 _a"Shankar, S "
245 0 _aExhaust Emission Monitoring System
260 _aCoimbatore
260 _b PSG College of Arts and Science
260 _c2012
942 _cBK
999 _c137872
_d137872