APA Edition Citation

Ulmer, R. R., Sellnow, T. L., & Seeger, M. W. Effective crisis communication (Fourth Edition.).

Chicago Edition Citation

Ulmer, Robert R., Timothy L. Sellnow, and Matthew W. Seeger. Effective Crisis Communication. Fourth Edition.

MLA Edition Citation

Ulmer, Robert R., et al. Effective Crisis Communication. Fourth Edition.