000 00323nam a2200133Ia 4500
008 240112s9999 xx 000 0 und d
082 _a539
_bR
100 _aTheraja, B L
245 0 _aModern physics
260 _a New Delhi
_bS Chand & Company Pvt. Ltd.
_c2002
300 _a422
650 _aModern physics
942 _cBK
999 _c31207
_d31207