000 00248nam a2200085Ia 4500
008 240211s9999 xx 000 0 und d
100 1 _aDe Belen, Rustico T..
245 1 0 _aBasic statistics for research /
_cBelen Rustico.T D De Belen.
650 0 _aStatistics
999 _c3801
_d3801