APA aipamena

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

Chicago Style aipamena

Barnes, Richard, and Karl Heinz Wolf. VoIP Emergency Calling: Foundations and Practice. Hoboken, NJ: Wiley, 2011.

MLA aipamena

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