000 00285nam a2200133Ia 4500
008 221030s9999 xx 000 0 und d
041 _aEnglish
082 _a105.23
100 _aA Leon
245 0 _aIntroduction to Computer
_cby A Leon
260 _c0
650 _aB
942 _cBK
999 _c13645
_d13645