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040 _aUPES LIBRARY
_bEnglish
082 _a530
_bGUP
100 _aGupta
_936855
245 _aPractical physics
260 _aMeerut:
_bPragati Prakashan,
_c2002
300 _a566p.
650 _aPhysics
942 _cBK
999 _c4205
_d4205