000 00285nam a2200121Ia 4500
008 221102s9999 xx 000 0 und d
100 _aGupta, S P
245 0 _aStatistical methods
260 _bSultan Chand
_aDelhi
_c2000
300 _a1611 p.
700 _aGupta, Archana
942 _cBK
999 _c2322
_d2322