United States. Federal Bureau of Investigation. Counterterrorism Threat Assessment and Warning Unit & United States. Federal Bureau of Investigation. Counterterrorism Division. (1999). Terrorism in the United States. Counterterrorism Threat Assessment and Warning Unit, National Security Division.
Chicago Style (17th ed.) CitationUnited States. Federal Bureau of Investigation. Counterterrorism Threat Assessment and Warning Unit and United States. Federal Bureau of Investigation. Counterterrorism Division. Terrorism in the United States. Washington, D.C.: Counterterrorism Threat Assessment and Warning Unit, National Security Division, 1999.
MLA (9th ed.) CitationUnited States. Federal Bureau of Investigation. Counterterrorism Threat Assessment and Warning Unit and United States. Federal Bureau of Investigation. Counterterrorism Division. Terrorism in the United States. Counterterrorism Threat Assessment and Warning Unit, National Security Division, 1999.