Gaya APA

Babiak, J, B, J. (2005). Defending the digital frontier : practical security for management.-- (Ed. 2.--). New Jersey: John Wiley & Sons.

Gaya MLA

Babiak, Jan, Babiak,, Jan. "Defending the digital frontier : practical security for management.--". Ed. 2.-- New Jersey: John Wiley & Sons, 2005. Buku.