Columbia subject headings:
Geology--Asia--Congresses.
Ketin, İhsan--Congresses.
Tethys (Paleogeography)--Congresses.
Harvard subject headings:
Geology--Asia--Congresses.
Tethys (Paleogeography)--Congresses.
Princeton subject headings:
Geology--Asia--Congresses.
Ketin, İhsan--Congresses.
Tethys (Paleography)--Congresses.