Columbia subject headings:
Hittite language--Grammar.
Hittites--Religion.
Thunderstorms--Folklore.
Harvard subject headings:
Hittite language--Grammar.
Hittites--Religion.
Thunderstorms (in religion, folk-lore, etc.)
Princeton subject headings:
Hittite language--Grammar.
Hittites--Religion.
Thunderstorms (in religion, folk-lore, etc.)