APA (7th ed.) Citation

Donohue, D., Mallory, D., Salhoff, K., Chokshi, J., & Au, D. (2007). Cisco voice gateways and gatekeepers (1st edition.). Cisco Press.

Chicago Style (17th ed.) Citation

Donohue, Denise, David Mallory, Ken Salhoff, Jayesh Chokshi, and Danelle Au. Cisco Voice Gateways and Gatekeepers. 1st edition. Indianapolis, Ind.: Cisco Press, 2007.

MLA (9th ed.) Citation

Donohue, Denise, et al. Cisco Voice Gateways and Gatekeepers. 1st edition. Cisco Press, 2007.