Columbia subject headings:
Arabs--Genealogy.
Arabs--History.
Ethnology--Arab countries.
Tribes--Arab countries.
Harvard subject headings:
Arabs--Genealogy--Encyclopedias.
Arabs--History--Encyclopedias.
Ethnology--Arab countries--Encyclopedias.
Tribes--Arab countries--Encyclopedias
Princeton subject headings:
Arabs--Genealogy--Encyclopedias.
Arabs--History--Encyclopedias.
Ethnology--Arab countries--Encyclopedias.
Tribes--Arab countries--Encyclopedias.