National Threat Assessment Center (U.S.). (2018). Enhancing school safety using a threat assessment model: An operational guide for preventing targeted school violence : executive summary. United States Secret Service, National Threat Assessment Center.
Chicago Style (17th ed.) CitationNational Threat Assessment Center (U.S.). Enhancing School Safety Using a Threat Assessment Model: An Operational Guide for Preventing Targeted School Violence : Executive Summary. [Washington, D.C.]: United States Secret Service, National Threat Assessment Center, 2018.
MLA (9th ed.) CitationNational Threat Assessment Center (U.S.). Enhancing School Safety Using a Threat Assessment Model: An Operational Guide for Preventing Targeted School Violence : Executive Summary. United States Secret Service, National Threat Assessment Center, 2018.