Columbia subject headings:
Dahūk (Iraq : Province)--Encyclopedias.
Dihōk (Iraq)--Encyclopedias.
Encyclopedias.
Harvard subject headings:
Dihōk (Iraq)--Encyclopedias.
Duhok (Iraq : Province)--Encyclopedias.
Princeton subject headings:
Dahūk (Iraq : Province)--Encyclopedias.
Encyclopedias.
Kurds--Iraq--Dahūk (Province)--Encyclopedias.