Columbia subject headings:
Alexandria (Orthodox patriarchate)
Cairo Genizah.
Egypt--Ethnic relations.
Fatimites.
Jews--Egypt--Politics and government.
Nagid.
Harvard subject headings:
Cairo Genizah.
Coptic Church.
Egypt--Ethnic relations.
Fatimites.
Jews--Egypt--History--70-1789.
Jews--Egypt--Politics and government.
Nagid.
Princeton subject headings:
Cairo Genizah.
Coptic Church.
Egypt--Ethnic relations.
Fatimites.
Jews--Egypt--Politics and government.
Nagid.