000 00281nam a2200109Ia 4500
008 231004s9999 xx 000 0 und d
020 _a0-0722-6212-5
090 _a004.6 HAL
100 0 _aBruce Hallberg
245 0 0 _aNetworking : A Beginner's Guide
260 _aMcGraw-Hill
_bNew York
999 _c15456
_d15456