Columbia subject headings:
Architecture--Turkey--Congresses.
Turkey--History--Ottoman Empire, 1288-1918--Congresses.
Harvard subject headings:
Architecture, Ottoman--Turkey--Istanbul--Congresses.
Architecture--Turkey--Congresses.
City planning--Turkey--Istanbul--Congresses.
Turkey--History--Ottoman Empire, 1288-1918--Congresses.
Princeton subject headings:
Architecture--Turkey--Congresses.
Turkey--History--Ottoman Empire, 1288-1918--Congresses.