Gaya APA

Carr, H, H., Snyder, C, A. (2007). Data Communications & Network Security . New York: Mc Graw-Hil Irwin.

Gaya MLA

Carr, Huston, H.., Snyder, Charles, A.. "Data Communications & Network Security". New York: Mc Graw-Hil Irwin, 2007. Text.