000 00321nam a2200133Ia 4500
008 210901s9999 xx 000 0 eng d
082 _a311 GUP
100 _aGupta, S.P.
245 0 _aStatistical methods
250 _a19 rev ed.
260 _aNew Delhi
_bSultan Chand & Sons
650 _aStatistics
942 _2ddc
_cBK
999 _c16003
_d16003