000 00293nam a2200133Ia 4500
008 230118s9999||||xx |||||||||||||| ||und||
082 _a539
082 _bMUR/M
100 _ar
_bmurugeshan
245 0 _amodern physics
260 _aNEW DELHI
260 _bS.CHAND &COMPANY LTD
260 _c1991
999 _c4706
_d4706