000			00542nam a2200169Ia 4500
008			211104s9999 xx 000 0 und d
020			_a9789332585225
041			_aENGLISH
082			_a005.8 Q7 STA
100			_aWILLIAM STALLLINGS
245		0	_aCRYPTOGRAPHY AND NETWORK SECURITY PRINCIPLES AND PRACTICE
250			_a7
260			_c2017 _bPEARSON EDUCATION
300			_a766
650			_aDATA SECURITY [ Ciphers, Computer Viruses, Trojan Horses, Worms, Data Backup and Recovery, Computer Security, Network Security]
942			_cBK
999			_c20564 _d20564