000			00321nam a2200133Ia 4500
008			211209s2009 xx 000 0 und d
020			_a8131716649
041			_aeng
100			_aSTALLINGS WILLIAMS
245			_aNETWORK SECURITY ESSENTIALS
250			_a3 ed.
260			_aNEW DELHI _bTMH _c2009
300			_a41XIV, 409
999			_c63421 _d63421