000 00320nam a2200109Ia 4500
001 104054
008 120911s9999 xx 000 0 und d
245 _aChanging Education ; Alternatives From Educational Research
_cWittrock M.C,
260 _bNew Jersey
_cPrentica Hall
300 _a1973
_bxii
_c184pp
700 _a67 = 50 /-
999 _c67498
_d67498