Walaski, P. (2011). Risk and crisis communications: Methods and messages. Wiley.
Lua i Stíl Chicago (17ú heag.)Walaski, Pamela. Risk and Crisis Communications: Methods and Messages. New Jersey: Wiley, 2011.
Lua MLA (9ú heag.)Walaski, Pamela. Risk and Crisis Communications: Methods and Messages. Wiley, 2011.
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