000			00418nam a2200145Ia 4500
008			241225s9999 xx 000 0 und d
020			_a9788177587745
082			_a005.82 _bSTA
100			_aStallings, William.
245		0	_aCryptography and network security principles and practies
260			_aDelhi : _bPearson Education, _c1994
300			_a680.
365			_a385
650			_aComputer programmingprograms data
999			_c37163 _d37163