APA引文

Douskalis, B. (2000). IP Telephony: The integration of robust VoIP sevices. Pearson Education.

Chicago Edition Citation

Douskalis, Bill. IP Telephony: The Integration of Robust VoIP Sevices. New Delhi: Pearson Education, 2000.

MLA引文

Douskalis, Bill. IP Telephony: The Integration of Robust VoIP Sevices. Pearson Education, 2000.

警告：這些引文格式不一定是100％准確.