United States. Department of Homeland Security. (2018). Threat and hazard identification and risk assessment (THIRA) and stakeholder preparedness review (SPR) guide (3rd edition.). Homeland Security.
Chicago Style (17th ed.) CitationUnited States. Department of Homeland Security. Threat and Hazard Identification and Risk Assessment (THIRA) and Stakeholder Preparedness Review (SPR) Guide. 3rd edition. [Washington, D.C.]: Homeland Security, 2018.
MLA (8th ed.) CitationUnited States. Department of Homeland Security. Threat and Hazard Identification and Risk Assessment (THIRA) and Stakeholder Preparedness Review (SPR) Guide. 3rd edition. Homeland Security, 2018.
Warning: These citations may not always be 100% accurate.