Columbia subject headings:
Hittites--Congresses.
Šuppiluliuma, Hittite king--Congresses.
Harvard subject headings:
Hittites--History--Congresses.
Šuppiluliuma, Hittite king--Congresses.
Princeton subject headings:
Hittites--Congresses.
Šuppiluliuma, Hittite king--Congresses.