000 00250nam a2200109Ia 4500
008 170912s9999 xx 000 0 und d
082 _a GOS/C
245 0 _aCHANGING CLASSES
260 _bALLIED PUBLISHERS PRIVATE
_c1993
300 _a261
942 _cTB
999 _c5358
_d5358