000 00335nam a2200145Ia 4500
008 230118s9999||||xx |||||||||||||| ||und||
020 _a978-1-25-900434-6
082 _a530
082 _bGHA/O
100 _aajoy
_bghatak
245 0 _aoptics
260 _anew delhi
260 _bmcgrawhill education private limitted
260 _c2012
999 _c3821
_d3821