000 00315nam a2200157Ia 4500
100 _aGupta, S P
080 _a311
526 _dNTB
526 _aUG
366 _f#REF!
942 _cBK
245 _aStatistical methods
260 _aSultan chand and sons
_bNew Delhi
_c2019
300 _axx,1432
546 _aE
999 _c57591
_d57591