Ulmer, R R., Sellnow, T L., & Seeger, M W. Effective crisis communication: Moving from crisis to opportunity. Thousand Oaks [u.a.]: Sage.

Effective crisis communication : Moving from crisis to opportunity / Robert R. Ulmer, Timothy L. Sellnow, Matthew W. Seeger . — Thousand Oaks [u.a.] : Sage. — XIII, 197 S.; Ill; 23 cm. — ISBN 1412914183, 1412914191, 9781412914185, 9781412914192

Ulmer, Robert R., Timothy Lester Sellnow, and Matthew Wayne Seeger. Effective Crisis Communication: Moving From Crisis to Opportunity.Thousand Oaks [u.a.]: Sage.