Columbia subject headings:
Egypt--History--640-1250.
Egypt--Intellectual life.
Egypt--Relations--Iraq.
Iraq--History--634-1517.
Iraq--Intellectual life.
Iraq--Relations--Egypt.
Harvard subject headings:
Egypt--History--640-1250
Egypt--Intellectual life.
Egypt--Relations--Iraq.
Iraq--History--634-1517.
Iraq--Intellectual life.
Iraq--Relations--Egypt.
Princeton subject headings:
Egypt--History--640-1250.
Egypt--Intellectual life.
Egypt--Relations--Iraq.
Iraq--History--634-1517.
Iraq--Intellectual life.
Iraq--Relations--Egypt.