000 00332nam a2200145Ia 4500
008 230118s9999||||xx |||||||||||||| ||und||
020 _a0-07-460138-5
082 _a535
082 _bGHA/O
100 _aajoy
_bghatak
245 0 _aoptics
260 _anew delhi
260 _btata mcgrawhill publishing company ltd
260 _c1992
999 _c9819
_d9819