Columbia subject headings:
Civilization--History.
Islam--Civilization.
Mecca (Saudi Arabia)--Civilization.
Mecca (Saudi Arabia)--History.
Harvard subject headings:
Civilization--History
Islam--Civilization.
Mecca (Saudi Arabia)--Civilization.
Mecca (Saudi Arabia)--History
Princeton subject headings:
Civilization--History.
Islam--Civilization.
Mecca (Saudi Arabia)--Civilization.
Mecca (Saudi Arabia)--History.