Columbia subject headings:
Earthquakes--Turkey--Congresses.
Earthquakes--Turkey--History.
Natural disasters--Turkey--Congresses.
Natural disasters--Turkey--History.
Harvard subject headings:
Earthquakes--Turkey--Congresses.
Earthquakes--Turkey--History--Congresses.
Earthquakes--Turkey--History.
Natural disasters--Turkey--Congresses.
Natural disasters--Turkey--History--Congresses.
Natural disasters--Turkey--History.
Princeton subject headings:
Earthquakes--Turkey--History--Congresses.
Natural disasters--Turkey--History--Congresses.