000			00372nam a2200133Ia 4500
008			130318s9999 xx 000 0 und d
020			_a8131703665
082			_a005.8 STA/N
100			_aStallings, William
245			_aNetwork security essentials :Applications and standards
260			_bPearson Education _aNew Delhi _c2006
300			_a374
650			_aNETWORK SECURITY
999			_c1372 _d1372