ScienceDirect (Online service) & Brashars, J. (2007). Asterisk hacking. Syngress.
Chicago Style (17th ed.) CitationScienceDirect (Online service) and Joshua Brashars. Asterisk Hacking. [Place of publication not identified]: Syngress, 2007.
MLA (9th ed.) CitationScienceDirect (Online service) and Joshua Brashars. Asterisk Hacking. Syngress, 2007.
Warning: These citations may not always be 100% accurate.