Columbia subject headings:
Emergency management--Washington (D.C.)
Incident command systems--Washington (D.C.)
Terrorism--Government policy--Washington (D.C.)
Harvard subject headings:
Emergency management--Washington (D.C.)
Incident command systems--Washington (D.C.)
Terrorism--Government policy--Washington (D.C.)
Princeton subject headings:
Emergency management--Washington (D.C.)
Incident command systems--Washington (D.C.).
Terrorism--Government policy--Washington (D.C.).