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020 _a9788174821461
041 _aENG
080 _aCOT:8751 ?
082 _aCOT:8751 ?
100 _aSINHA M P
245 _aCsir-uge net/jrf/set: Physical Sciences
260 _aUpkar, Agra
_c?
650 _aPhysics
999 _c211106
_d211106