Gaya APA

Conklin, W, A. (2012). Principles of computer security : compTIA security+ TM and beyond (exam syo -301 (3rd ed). New York: McGraw-Hill.

Gaya MLA

Conklin, Wm., Arthur. "Principles of computer security : compTIA security+ TM and beyond (exam syo -301". 3rd ed New York: McGraw-Hill, 2012. Text.