APA (7th ed.) Citation

Held, G. (1989). Data communications networking devices (2nd ed.). Wiley.

Chicago Style (17th ed.) Citation

Held, Gilbert. Data Communications Networking Devices. 2nd ed. Chichester: Wiley, 1989.

MLA (8th ed.) Citation

Held, Gilbert. Data Communications Networking Devices. 2nd ed. Wiley, 1989.

Warning: These citations may not always be 100% accurate.