000 00276nam a2200121Ia 4500
008 191031s9999 xx 000 0 und d
100 _a"Snedecor, Cochran"
245 0 _aStatistical methods 6th Edn
260 _bOxford IBH
260 _c1967
365 _b13
942 _cBK
999 _c215518
_d215518