000 00252nam a2200097Ia 4500
008 230331s9999 xx 000 0 und d
020 _a9780672307355
100 _aTHE INTERNET SEC EDITION
_9177357
245 0 _aTEACH YOURSELF THE INTERNET
942 _cBK
_w561
_xJohn Tresidder
_y561
_zJohn Tresidder
999 _c747152
_d747151