APA استشهاد

Shay, W. A. (2001). Understanding data communications & networks (2nd.). Thomson.

استشهاد بنمط شيكاغو

Shay, William A. Understanding Data Communications & Networks. 2nd. New Delhi: Thomson, 2001.

MLA استشهاد

Shay, William A. Understanding Data Communications & Networks. 2nd. Thomson, 2001.