000 00301nam a2200133Ia 4500
008 241124s9999 xx 000 0 und d
100 _aMaiwald, Eric
245 0 _aNetwork Security: A Beginner`s Guide
245 0 _b10
260 _bTata McGraw Hill
260 _c2003
300 _a475
942 _cBK
999 _c4538
_d4538