000 00319nam a2200133Ia 4500
008 160630s9999 xx 000 0 und d
020 _a9788121906241
100 _aGupta S.P.
245 _aPractical Statistics
260 _aN.Delhi
_bPractical Statistics
_c2004
300 _a561
942 _cREF
999 _c8690
_d8690