Dyfyniad APA

Coombs, W. T. (1999). On going crisis communicationplanning, managing, and responding. Sage.

Dyfyniad Arddull Chicago

Coombs, W. Timothy. On Going Crisis Communicationplanning, Managing, and Responding. Sage, 1999.

Dyfyniad MLA

Coombs, W. Timothy. On Going Crisis Communicationplanning, Managing, and Responding. Sage, 1999.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.