Walaski, P. (2011). Risk and crisis communications: Methods and messages. Wiley.
Chicago Style (17th ed.) ZitazioaWalaski, Pamela. Risk and Crisis Communications: Methods and Messages. New Jersey: Wiley, 2011.
MLA (9th ed.) ZitazioaWalaski, Pamela. Risk and Crisis Communications: Methods and Messages. Wiley, 2011.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.