Columbia subject headings:
Christianity and other religions--Egypt--Islam.
Copts--History.
Egypt--Ethnic relations--History.
Islam--Relations--Egypt--Christianity.
Harvard subject headings:
Copts--History.
Copts--Intellectual life.
Copts--Social life and customs.
Egypt--Civilization--638-1798.
Princeton subject headings:
Copts--History.
Copts--Intellectual life.
Copts--Social life and customs.
Egypt--Civilization--638-1798.