00393nam a2200145Ia 4500008004100000020002600041040002600067082001400093100002400107245005700131250001100188260002700199003000400226005001700230241127s9999||||xx |||||||||||||| ||und||  a9780131202719c175175  bengcSSK Libraryerda  a005.8/STA  a William  Stallings 0aNetwork Security Essential Application And Standards  a2nd ed  b Prentice Hallc©2003OSt20241127152806.0