Columbia subject headings:
Iraq--Boundaries--Turkey--Sources.
Karkūk (Iraq)--History--Sources.
Mosul (Iraq)--History--Sources.
Turkey--Boundaries--Iraq--Sources.
Harvard subject headings:
Iraq--Boundaries--Turkey--History.
Iraq--Boundaries--Turkey--Sources.
Karkūk (Iraq)--History--Sources.
Karkūk (Iraq)--History.
Mosul (Iraq)--History--Sources.
Mosul (Iraq)--History.
Turkey--Boundaries--Iraq--History.
Turkey--Boundaries--Iraq--Sources.
Princeton subject headings:
Iraq--Boundaries--Turkey--Sources.
Karkūk (Iraq)--History--Sources.
Mosul (Iraq)--History--Sources.
Turkey--Boundaries--Iraq--Sources.