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100 _aS.K GUPTA AND OTHERS
245 _aSTATISTICAL PHYSICS AND OPTICS
260 _bR. Chand & Co.
_aN Delhi
_c2011
300 _a221
650 _aPhysics
_bB.SC.
942 _2ddc
_cBK
_046
999 _c12624
_d12624