000 00300nam a2200121Ia 4500
100 _aGupta, C B
250 _a9th ed
942 _cBK
245 _aAn introduction to statistical methods
260 _aVikas Publishing House Pvt Ltd, New Delhi
_c1973
082 _a311.2 Gup
300 _axii, 119, xxiv
999 _c14395
_d14395