000 00289nam a2200121Ia 4500
008 230303s9999 xx 000 0 und d
041 _aeng
082 _a575 VAS
100 _aVASUDEVA (A.S.)
245 _aModern Engineernig Physics
260 _aNEW DELHI
_bS.Chand & Co.
365 _cRS
999 _c195954
_d195954