Columbia subject headings:
Crowd control--Saudi Arabia--Mecca.
Crowds--Saudi Arabia--Mecca.
Islamic law.
Muslim pilgrims and pilgrimages--Saudi Arabia--Mecca.
Harvard subject headings:
Princeton subject headings:
Crowd control--Saudi Arabia--Mecca.
Crowds--Saudi Arabia--Mecca.
Islamic law.
Muslim pilgrims and pilgrimages--Saudi Arabia--Mecca.