000 00242nam a2200109Ia 4500
008 160921s9999 xx 000 0 und d
100 _aMARSHALL B
245 _aREAL WORLD
260 _bHOUGHTON MIFFLIN COM
_c1991
300 _a264
942 _cBK
999 _c1433
_d1433