000 00281nam a2200121Ia 4500
008 191004s9999 xx 000 0 und d
082 _a530
245 0 _aGate Papers : Physics
250 _a1st Ed.
260 _bG.K.Publishers (P) Ltd. Noida,
_c2010
300 _a348p
942 _cBK
999 _c9763
_d9763