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020			_c50
040			_aMAIN
041			_aEnglish
082			_a519.5 _bGUP
100			_aGupta, S.C.
245			_aElements of mathematical statistics
250			_a3rd rev.
260			_bSultan Chand & Sons _c1979
300			_a501p.
650			_aMATHS
942			_cGB
999			_c956 _d956