Cita APA (7a ed.)

Walker, D. C. (2012). Mass notification and crisis communications: Planning, preparedness, and systems. CRC Press.

Cita Chicago Style (17a ed.)

Walker, Denise C. Mass Notification and Crisis Communications: Planning, Preparedness, and Systems. Boca Raton, Fla.: CRC Press, 2012.

Cita MLA (9a ed.)

Walker, Denise C. Mass Notification and Crisis Communications: Planning, Preparedness, and Systems. CRC Press, 2012.