000 00308nam a2200145Ia 4500
008 230523s9999 xx 000 0 und d
082 _a519.5 GUP
100 _aGupta, S.P.
245 0 _aStatistical Methods
260 _aDelhi
260 _bSultan Chand
260 _c2017
300 _a1426
942 _cTB
999 _c1897
_d1897