Dyfyniad APA

Coombs, W. T. (2007). Ongoing crisis communication: Planning, managing, and responding (2nd ed.). Sage.

Dyfyniad Arddull Chicago

Coombs, W. Timothy. Ongoing Crisis Communication: Planning, Managing, and Responding. 2nd ed. Thousand Oaks, Calif: Sage, 2007.

Dyfyniad MLA

Coombs, W. Timothy. Ongoing Crisis Communication: Planning, Managing, and Responding. 2nd ed. Sage, 2007.

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