000			00409nam a2200145Ia 4500
008			220217s9999||||xx |||||||||||||| ||und||
020			_a81-7808-605-0
082			_a004.6 STA
100			_aStallings, William
245		0	_aCryptography and network security: principles and practice
250			_a2nd
260			_aPearson education asia _bDelhi _c2002
300			_b295
650			_aCOMPUTER NETWORK
999			_c168562 _d168562