APA引文

Mok, H. N., & Siew, D. C. K. (2008). Current issues in voice over IP.

Chicago Style Citation

Mok, Heng Ngee., and David Chee Kheong Siew. Current Issues in Voice Over IP. 2008.

MLA引文

Mok, Heng Ngee., and David Chee Kheong Siew. Current Issues in Voice Over IP. 2008.

警告：這些引文格式不一定是100％准確.