000 00256nam a2200109Ia 4500
008 240531s9999 xx 000 0 und d
082 _aR792 ROS
100 _aNULL
245 4 _aThe Opera Directory
260 _aLondon
_b John Calder
_c1961
942 _cAREF
999 _c331361
_d331361