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040 _aMAIN
041 _aEnglish
082 _a539
_bSIN N2
245 0 _aModern physics
_cD.L. Sehgal...[et.al.]
250 _a7th
260 _aNew Delhi
_bSultan Chand
_c1995
300 _axii,4.118
650 _aPhysics
700 _aSehgal, D.L.
942 _cBK
999 _c12803
_d12803