Haddow, G. D., Bullock, J. A., & Coppola, D. P. (2011). Introduction to emergency management (4th ed.). Butterworth Heinemann.

Haddow, George D., Jane A. Bullock, and Damon P. Coppola. Introduction to Emergency Management. 4th ed. Burlington, MA: Butterworth Heinemann, 2011.

Haddow, George D., et al. Introduction to Emergency Management. 4th ed. Butterworth Heinemann, 2011.