Columbia subject headings:
Erbil (Iraq)--History.
Karkūk (Iraq)--History.
Mosul (Iraq)--History.
Turkmen--Iraq--History.
Harvard subject headings:
Iraq--Ethnic relations.
Turkmen--Iraq.
Princeton subject headings:
Erbil (Iraq)--History.
Karkūk (Iraq)--History.
Mosul (Iraq)--History.
Turkmen--Iraq--History.