TY - BOOK AU - Gregg, Michael. TI - Exam PREP certified ethical hacker : your complete certification solution exam 312-50 SN - 9788131720301 U1 - 001.64404 GRE;1 R PY - 2006/// CY - New Delhi PB - Dorling Kindersley KW - Exam,PREP,certified,ethical,hacker,certification,solution,exam,312-50 ER -