000 00324nam a2200133Ia 4500
008 210901s1998 xx 000 0 eng d
020 _a8170144094
082 _a310 GUP
100 _aGupta, S.P.
245 0 _aStatistical methods
250 _a4th ed.
260 _aNew Delhi
_bSultan Chand & Sons
_c1998
942 _2ddc
_cBK
999 _c23815
_d23815