Cita APA (7a ed.)

Christmas, P. (1992). Network security manager. Elsevier Advanced Technology [etc.].

Cita Chicago Style (17a ed.)

Christmas, Paul. Network Security Manager. Oxford [etc.]: Elsevier Advanced Technology [etc.], 1992.

Cita MLA (9a ed.)

Christmas, Paul. Network Security Manager. Elsevier Advanced Technology [etc.], 1992.