APA引文

Held , G. . .. (1994). Understanding Data Communications (4.). Prentice Hall of India.

Chicago Edition Citation

Held , Gilbert. Understanding Data Communications. 4. New Delhi: Prentice Hall of India, 1994.

MLA引文

Held , Gilbert. Understanding Data Communications. 4. Prentice Hall of India, 1994.

警告：這些引文格式不一定是100％准確.