000 00300nam a2200121Ia 4500
008 191031s9999 xx 000 0 und d
100 _aTheodore J.Selaff
245 0 _aPractical problems in business economic statistics
260 _bHoden day
260 _c1968
365 _b39.38
942 _cBK
999 _c199658
_d199658