APA Citation

Gilbert Held. (1994). Understanding data communications (1/1994.). Usa: Sams publishing.

Chicago Style Citation

Gilbert Held. Understanding Data Communications. 1/1994. Usa: Sams publishing, 1994.

MLA Citation

Gilbert Held. Understanding Data Communications. 1/1994. Usa: Sams publishing, 1994.

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