000 00313nam a2200133Ia 4500
008 200615s9999||||xx |||||||||||||| ||und||
082 _a540
_bORG-K
100 _aKALSI,PS
245 0 _aORGANIC REACTION AND THEIR MECHANISM
250 _a1ST
260 _aNEW DELHI
_bNEW AGE
_c2018
300 _a737
942 _cBK
999 _c31813
_d31813