000 00316nam a2200133Ia 4500
008 221001s1972 xx 000 0 eng d
082 _a311.2 GUP
100 _aGupta, S. P.
245 0 _aStatistical methods
250 _a4th ed.
260 _aDelhi
_bSultan Chand
_c1972
300 _axii, 607p.
942 _2ddc
_cBK
999 _c11962
_d11962