Sennewald, C. A. (2011). Effective security management (5. ed.). Elsevier Butterworth-Hein.
Cita Chicago Style (17a ed.)Sennewald, Charles A. Effective Security Management. 5. ed. Amsterdam [u.a.]: Elsevier Butterworth-Hein, 2011.
Cita MLA (9a ed.)Sennewald, Charles A. Effective Security Management. 5. ed. Elsevier Butterworth-Hein, 2011.
Precaución: Estas citas no son 100% exactas.