Columbia subject headings:
Iran--Relations--Saudi Arabia.
Islamic countries--Politics and government.
Muslim pilgrims and pilgrimages--Saudi Arabia--Mecca.
Saudi Arabia--Relations--Iran.
Shīʻah--Relations.
Harvard subject headings:
Iran--Relations--Saudi Arabia.
Islamic countries--Politics and government.
Muslim pilgrims and pilgrimages--Saudi Arabia--Mecca.
Saudi Arabia--Relations--Iran.
Shīʻah--Relations.
Princeton subject headings:
Iran--Relations--Saudi Arabia.
Islamic countries--Politics and government.
Muslim pilgrims and pilgrimages--Saudi Arabia--Mecca.
Saudi Arabia--Relations--Iran.
Shīʻah--Relations.