000 00292nam a2200121Ia 4500
008 221102s9999 xx 000 0 und d
082 _a004.678 GEE
100 _aGeer, Sean
245 0 _aEssential internet
260 _bProfile Books Ltd
_aLondon
_c2004
300 _aviii,296 p.
942 _cBK
999 _c3724
_d3724