Cita APA (7a ed.)

Held, G. (2004). Virtual private networking: A construction, operation and utilization guide. John Wiley.

Cita Chicago Style (17a ed.)

Held, Gilbert. Virtual Private Networking: A Construction, Operation and Utilization Guide. Chichester: John Wiley, 2004.

Cita MLA (9a ed.)

Held, Gilbert. Virtual Private Networking: A Construction, Operation and Utilization Guide. John Wiley, 2004.