APA (7th ed.) Citation

Keromytis, A. D. (2011). Voice over IP security: A comprehensive survey of vulnerabilities and academic research. Springer.

Chicago Style (17th ed.) Citation

Keromytis, Angelos D. Voice over IP Security: A Comprehensive Survey of Vulnerabilities and Academic Research. New York: Springer, 2011.

MLA (9th ed.) Citation

Keromytis, Angelos D. Voice over IP Security: A Comprehensive Survey of Vulnerabilities and Academic Research. Springer, 2011.