Cita APA (7th ed.)

Shay, W. A. (1995). Understanding data communications and networks. PWS Pub.

Cita Chicago (17th ed.)

Shay, William A. Understanding Data Communications and Networks. Boston: PWS Pub, 1995.

Cita MLA (9th ed.)

Shay, William A. Understanding Data Communications and Networks. PWS Pub, 1995.