Cita APA (7a ed.)

Held, G. (1992). Data communications networking devices (3rd ed.). John Wiley & Sons.

Cita Chicago Style (17a ed.)

Held, Gilbert. Data Communications Networking Devices. 3rd ed. Chichester [etc.]: John Wiley & Sons, 1992.

Cita MLA (9a ed.)

Held, Gilbert. Data Communications Networking Devices. 3rd ed. John Wiley & Sons, 1992.