APA (7th ed.) Citation

Verma, P. K., & Wang, L. D. (2011). Voice over IP networks: Quality of service, pricing and security. Springer.

Chicago Style (17th ed.) Citation

Verma, Pramode K., and Ling Dr Wang. Voice over IP Networks: Quality of Service, Pricing and Security. Berlin: Springer, 2011.

MLA (9th ed.) Citation

Verma, Pramode K., and Ling Dr Wang. Voice over IP Networks: Quality of Service, Pricing and Security. Springer, 2011.