000 00267nam a2200121Ia 4500
100 _aGupta, S.P
942 _cBK
245 _aStatistical methods
260 _aNew Delhi
_bSultan Chand and sons
_c1978
082 _a311
_bGup
300 _aVarious
546 _aEnglish
999 _c334962
_d334962
041 _aeng