000 00275nam a2200121Ia 4500
008 211209s9999 xx 000 0 und d
020 _a9.78935E+12
041 _aeng
082 _a005.117 FRE
100 _aFREEMAN
245 _aHEAD FIRST DESIGN PATTERN
260 _bOREILLY
999 _c78105
_d78105