000 00309nam a2200133Ia 4500
008 180611s9999||||xx |||||||||||||| ||und||
041 _aen
082 _a519.5
100 _aGUPTA,S.P.
245 0 _aPractical Statistics
260 _bNew Delhi. S.Chand & Co. Ltd.
_c1971
300 _avi,562p.
942 _cLL
999 _c15946
_d15946