APA (7 वां संस्करण) प्रशस्ति पत्र

Held, G. (2002). Understanding data communications (7th ed.). Addison-Wesley, ; Pearson Education.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Held, Gilbert. Understanding Data Communications. 7th ed. Boston : New Delhi: Addison-Wesley, ; Pearson Education, 2002.

एमएलए (8वां संस्करण) प्रशस्ति पत्र

Held, Gilbert. Understanding Data Communications. 7th ed. Addison-Wesley, ; Pearson Education, 2002.