000 00309nam a2200121Ia 4500
008 210212s9999||||xx |||||||||||||| ||und||
082 _a519.5 Gup.N1
100 _aGupta , S.P.
245 0 _aElementary Statistical Methods
260 _c1991
_bSultan Chand & Sons
_aNew Delhi
300 _a614p.
942 _cSU
999 _c90844
_d90844