Cita APA (7a ed.)

Sennewald, C. A. (1989). Security consulting. Butterworth-Heinemann.

Cita Chicago Style (17a ed.)

Sennewald, Charles A. Security Consulting. Boston [u.a.]: Butterworth-Heinemann, 1989.

Cita MLA (8a ed.)

Sennewald, Charles A. Security Consulting. Butterworth-Heinemann, 1989.