Columbia subject headings:
Architecture, Byzantine--Turkey--Istanbul.
Architecture, Early Christian--Balkan Peninsula.
Architecture--Composition, proportion, etc.
Ayasofya Müzesi.
Basilicas--Balkan Peninsula.
Istanbul (Turkey)--Buildings, structures, etc.
Harvard subject headings:
Architecture, Byzantine--Turkey--Istanbul
Architecture, Early Christian--Balkan Peninsula.
Architecture--Composition, proportion, etc.
Ayasofya Müzesi.
Basilicas--Balkan Peninsula.
Basilicas--Yugoslavia.
Istanbul (Turkey)--Buildings, structures, etc.
Princeton subject headings:
Architecture, Early Christian--Balkans.
Architecture--Composition, proportion, etc.
Ayasofya Müzesi.