APA (7th ed.) Citation

ProQuest (Firm), Heath, R. L., & O'Hair, D. (2009). Handbook of risk and crisis communication. Routledge.

Chicago Style (17th ed.) Citation

ProQuest (Firm), Robert L. Heath, and Dan O'Hair. Handbook of Risk and Crisis Communication. New York: Routledge, 2009.

MLA (9th ed.) Citation

ProQuest (Firm), et al. Handbook of Risk and Crisis Communication. Routledge, 2009.