APA (7th ed.) Citation

Wolf, K. H. (2011). VoIP emergency calling: Foundations and practice. Wiley.

Chicago Style (17th ed.) Citation

Wolf, Karl Heinz. VoIP Emergency Calling: Foundations and Practice. Chichester, West Sussex, U.K: Wiley, 2011.

MLA (9th ed.) Citation

Wolf, Karl Heinz. VoIP Emergency Calling: Foundations and Practice. Wiley, 2011.

Warning: These citations may not always be 100% accurate.