000 00293nam a2200121Ia 4500
008 221102s9999 xx 000 0 und d
100 _aGupta, S.P
245 0 _aElementary statistical methods
250 _a11th ed
260 _bSultan Chand
_aNew Delhi
_c1995
300 _a748p p.
942 _cBK
999 _c2720
_d2720