000			00330nam a22001337a 4500
020			_a9788131761663
082			_a005.8 STA
100			_aStallings William
245			_aCryptography and Network Security
260			_aNew Delhi _bPearson _c2011
300			_a742
650			_aComputer programming, programs & data
942			_cBK
999			_c7643 _d7643