Columbia subject headings:
Harvard subject headings:
Egypt--History--640-1250.
Islam--Egypt--History
Islamic Empire--History--622-661.
Muḥammad, Prophet, -632--Friends and associates.
ʻAmr ibn al-ʻĀṣ.
Princeton subject headings:
Egypt--History--640-1250.
Islam--Egypt--History.
Islamic Empire--History--622-661.
Muḥammad, Prophet, -632--Friends and associates.
ʻAmr ibn al-ʻĀṣ.