Columbia subject headings:
Alamut Valley Expedition (1960)
Assassins (Ismailites)
Iran--Description and travel.
Harvard subject headings:
Alamut Valley (Iran)--Antiquities.
Alamut Valley Expedition (1960)
Assassins (Ismailites)
Castles--Iran--Alamut Valley.
Princeton subject headings:
Alamut Valley Expedition.
Assassins (Ismailites)
Iran--Description and travel.