000 00283nam a2200121Ia 4500
008 221117b |||||||| |||| 00| 0 eng d
040 _aBGL
_cBGL
082 _a311GUP;P
100 _aGupta, S.P.
245 0 _aPractical Statistics
260 _aNew Delhi
_bS.Chand
_c1980
942 _cWD
999 _c20902
_d20902