Columbia subject headings:
Istanbul (Turkey)--Encyclopedias.
Istanbul (Turkey)--History.
Istanbul (Turkey)--Social life and customs.
Harvard subject headings:
Architecture--Turkey--Istanbul
Istanbul (Turkey)--Biography.
Istanbul (Turkey)--Buildings, structures, etc.
Istanbul (Turkey)--Encyclopedias.
Princeton subject headings:
Architecture--Turkey--Istanbul.
Encyclopedias.
Istanbul (Turkey)--Biography.
Istanbul (Turkey)--Buildings, structures, etc.
Istanbul (Turkey)--Description and travel.
Istanbul (Turkey)--Encyclopedias.
Istanbul (Turkey)--History.