000 00281nam a2200133Ia 4500
008 221001s1971 xx 000 0 eng d
082 _a613.7 SAN
100 _aGUPTA (S.P)
245 0 _aStatistical methods
250 _a3
260 _c1971
300 _a629
942 _2ddc
_cBK
999 _c11438
_d11438