000 00334nam a2200133Ia 4500
008 260319s9999 xx 000 0 und d
020 _a9.789389583e+012
082 _a540
_bGAR/E
100 _aGarg,Savita
245 0 _aEngineering Chemistry
260 _aNew Delhi
_bI.K International Pvt.Ltd
_c2019
300 _a287p.
942 _cBK
999 _c51475
_d51475