000 00287nam a2200121Ia 4500
008 210901s1970 xx 000 0 eng d
082 _a310 GUP
100 _aGupta S.P
245 0 _aStatistical methods
260 _aNew Delhi
_bSultan Chand
_c1994
300 _a1230p.
942 _2ddc
_cBK
999 _c14289
_d14289