Columbia subject headings:
Muslims--Social life and customs--Encyclopedias.
Tribes--Encyclopedias.
Harvard subject headings:
Ethnology--Islamic countries--Encyclopedias.
Islamic countries--Social life and customs--Encyclopedias.
Muslims--Encyclopedias.
Muslims--Islamic countries--Social life and customs--Encyclopedias.
Muslims--Social life and customs--Encyclopedias.
Tribes--Encyclopedias.
Princeton subject headings:
Encyclopedias.
Muslims--Social life and customs--Encyclopedias.
Tribes--Encyclopedias.