Cita APA (7th ed.)
Shay, W. A. (1999). Understanding data communications and networks (2nd ed.). Vikas Pub.
Cita Chicago (17th ed.)
Shay, William A. Understanding Data Communications and Networks. 2nd ed. New Delhi: Vikas Pub, 1999.
Cita MLA (9th ed.)
Shay, William A. Understanding Data Communications and Networks. 2nd ed. Vikas Pub, 1999.
Atenció: Aquestes cites poden no estar 100% correctes.