Columbia subject headings:
Arad Fort (Bahrain)--Conservation and restoration.
Bahrain--Antiquities--Conservation and restoration.
Bahrain--Defenses--Conservation and restoration.
Fortification--Conservation and restoration--Bahrain.
Harvard subject headings:
Arad Fort (Bahrain)
Fortification--Bahrain--Muḥarraq--Conservation and restoration.
Muḥarraq (Bahrain)--Antiquities--Conservation and restoration.
Princeton subject headings:
Arad Fort (Bahrain)--Conservation and restoration.
Bahrain--Antiquities--Conservation and restoration.
Bahrain--Defenses--Conservation and restoration.
Fortification--Bahrain--Conservation and restoration.