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040 _aMAIN
041 _aEnglish
082 _a311
100 _aGUPTA, S.P
245 0 _aPractical Statistics
_bPractical Statistics, New Delhi : S.Chand (B), 1971
_cS.P GUPTA
260 _c1971
_bS.Chand (B)
_aNew Delhi
942 _cBK
999 _c6755
_d6755