APA Edition Citation

Held, G. (2003). Understanding data communications (7th ed.). Pearson Education.

Chicago Edition Citation

Held, Gilbert. Understanding Data Communications. 7th ed. Delhi: Pearson Education, 2003.

MLA Edition Citation

Held, Gilbert. Understanding Data Communications. 7th ed. Pearson Education, 2003.

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