Gaya APA

Maiwald, E., McKenzie, J, B, &, J. (2003). Network security; A Beginner's guide (2). California: McGraw-ill/ Osborne.

Gaya MLA

Maiwald, Eric., McKenzie, Jane, Brownlow,, &, Jody. "Network security; A Beginner's guide". 2 California: McGraw-ill/ Osborne, 2003. Text.