Haddow, G. D., Bullock, J. A., & Coppola, D. P. (2011). Introduction to emergency management (4th ed.). Elsevier.
Lua i Stíl Chicago (17ú heag.)Haddow, George D., Jane A. Bullock, agus Damon P. Coppola. Introduction to Emergency Management. 4th ed. Amsterdam: Elsevier, 2011.
Lua MLA (9ú heag.)Haddow, George D., et al. Introduction to Emergency Management. 4th ed. Elsevier, 2011.
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