Columbia subject headings:
Chemical warfare--Iraq--Halabjah.
Halabjah (Iraq)--History--Massacres.
Iraq--Ethnic relations.
Kurds--Crimes against--Iraq.
Kurds--Iraq--Halabjah.
Kurds--Iraq--History--20th century.
Harvard subject headings:
Princeton subject headings:
Gases, Asphyxiating and poisonous--Iraq--Halabjah--War use.
Halabjah (Iraq)--History.
Iraq--Ethnic relations.
Kurds--Government policy--Iraq.
Kurds--Iraq--Halabjah.