Columbia subject headings:
Architecture, Byzantine--Turkey--Istanbul.
Istanbul (Turkey)--Antiquities, Byzantine.
Procopius. De aedificiis Iustiniani imperatoris.
Harvard subject headings:
Architecture, Byzantine--Turkey--Istanbul
Istanbul (Turkey)--Antiquities, Byzantine.
Istanbul (Turkey)--Buildings, structures, etc.
Procopius. De aedificiis Iustiniani imperatoris.
Princeton subject headings:
Architecture, Byzantine--Turkey--Istanbul.
Istanbul (Turkey)--Antiquities, Byzantine.
Procopius. De aedificiis Iustiniani imperatoris.