Columbia subject headings:
Inscriptions, Old Turkic--Mongolia.
Old Turkic language--Mongolia.
Omens.
Harvard subject headings:
Inscriptions, Old Turkic--Mongolia.
Irk bitig.
Old Turkic language--Mongolia.
Omens.
Princeton subject headings:
Inscriptions, Old Turkic--Mongolia.
Old Turkic language--Mongolia.
Omens.