Columbia subject headings:
Paleogeography--Balkan Peninsula.
Paleogeography--Middle East.
Petroleum--Geology.
Tethys (Paleogeography)
Harvard subject headings:
Continental drift--Congresses.
Geology--Middle East--Congresses.
Plate tectonics--Congresses
Tethys (Paleogeography)--Congresses.
Princeton subject headings:
Geology--Mediterranean Sea--Congresses.
Geology--Middle East--Congresses.