000 00254nam a2200109Ia 4500
008 221118b |||||||| |||| 00| 0 eng d
040 _cBGL
100 _aGupta, S P
245 0 _aStatistical methods
260 _aDelhi
_bSultan Chand
_c1975
942 _cWDSA
999 _c37812
_d37812