Cita APA (7th ed.)

Schulzrinne, H. (2013). Internet protocol-based emergency services. Wiley.

Cita Chicago (17th ed.)

Schulzrinne, Henning. Internet Protocol-based Emergency Services. Chichester, West Sussex: Wiley, 2013.

Cita MLA (9th ed.)

Schulzrinne, Henning. Internet Protocol-based Emergency Services. Wiley, 2013.