Understanding data communications : from fundamentals to networking.

MLA

Held, Gilbert. Understanding Data Communications : From Fundamentals to Networking. 3rd ed. Chichester: Wiley, 2001.

APA

Held, G. (2001). Understanding data communications : from fundamentals to networking. 3rd ed. Chichester: Wiley.

Chicago

Held, Gilbert, Understanding Data Communications: From Fundamentals to Networking. 3rd ed. Chichester: Wiley, 2001.