000 00315nam a2200121Ia 4500
008 250224s9999 xx 000 0 und d
020 _a947885706
082 _a371.251HAB
100 _aHabeshaw Sue
245 0 _a53 Problems with large classes
260 _bTechnical and Educational services
_c1992
942 _cBK
999 _c444860
_d444860