000 00266nam a2200121Ia 4500
100 _aGupta, S. P.
942 _cBK
245 _aStatistical methods
260 _aNew Delhi
_bSultan Cand & Sons
_c1982
082 _a311
_bGup
300 _aVarious
546 _aEnglish
999 _c334963
_d334963
041 _aeng