Cita APA (7a ed.)

Roper, C. A. (1999). Risk Management for Security Professionals. Butterworth-Heinemann.

Cita Chicago Style (17a ed.)

Roper, C. A. Risk Management for Security Professionals. Boston: Butterworth-Heinemann, 1999.

Cita MLA (9a ed.)

Roper, C. A. Risk Management for Security Professionals. Butterworth-Heinemann, 1999.