000 00288nam a2200121Ia 4500
008 190719s9999 xx 000 0 und d
100 _aC B Gupta
245 0 _aIntroduction to statistical methods
250 _a5th
260 _aAgra
_bRam Prasad & Sons
_c1969
650 _aMath
942 _cBK
999 _c660
_d660