APA Style
Walker, M. (2014).
CEH Certified Ethical Hacker Practice Exams (2nd Edition).
United States of America:
Mc Graw-Hill Education.
MLA Style
Walker, Matt.
"CEH Certified Ethical Hacker Practice Exams".
2nd Edition
United States of America:
Mc Graw-Hill Education,
2014.
Text.