000 00311nam a2200133Ia 4500
008 220201s1976 xx 000 0 eng d
082 _a310
_bGUP
100 _aGupta,S.P.
245 0 _aElementary statistical methods
250 _a2nd
260 _bSultan Chand
_aNew Delhi
_c1976
300 _a438
942 _2ddc
999 _c3318
_d3318