Columbia subject headings:
Harvard subject headings:
Iran--Foreign relations--Saudi Arabia.
Muslim pilgrims and pilgrimages--Saudi Arabia--Mecca--History--20th century.
Riots--Saudi Arabia--Mecca.
Saudi Arabia--Foreign relations--Iran.
Princeton subject headings:
Mecca (Saudi Arabia)--History--Massacre, 1987.
Muslim pilgrims and pilgrimages--Saudi Arabia--Mecca.