ebrary, Inc, & Vacca, J. R. (2010). Managing information security. Elsevier/Syngress.
Chicago Style (17th ed.) Zitazioaebrary, Inc, eta John R. Vacca. Managing Information Security. Amsterdam ; Boston: Elsevier/Syngress, 2010.
MLA (9th ed.) Zitazioaebrary, Inc, eta John R. Vacca. Managing Information Security. Elsevier/Syngress, 2010.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.