Columbia subject headings:
Architecture, Byzantine--Turkey--Istanbul--Bibliography.
Architecture, Early Christian--Turkey--Istanbul--Bibliography.
Christian antiquities--Turkey--Istanbul--Bibliography.
Istanbul (Turkey)--Buildings, structures, etc.--Bibliography.
Harvard subject headings:
Architecture, Byzantine--Turkey--Istanbul--Bibliography.
Architecture, Early Christian--Turkey--Istanbul--Bibliography.
Istanbul (Turkey)--Buildings, structures, etc.--Bibliography.
Princeton subject headings: