Dyfyniad APA
Walaski, P. (2011). Risk and crisis communications: Methods and messages. Wiley.
Dyfyniad Arddull Chicago
Walaski, Pamela. Risk and Crisis Communications: Methods and Messages. New Jersey: Wiley, 2011.
Dyfyniad MLA
Walaski, Pamela. Risk and Crisis Communications: Methods and Messages. Wiley, 2011.
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