Coombs, W. T. (1999). On going crisis communicationplanning, managing, and responding. Sage.
Chicago-referens (17:e uppl.)Coombs, W. Timothy. On Going Crisis Communicationplanning, Managing, and Responding. Sage, 1999.
MLA-referens (8:e uppl.)Coombs, W. Timothy. On Going Crisis Communicationplanning, Managing, and Responding. Sage, 1999.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.