Columbia subject headings:
Abkhazo-Adyghian languages--Morphology.
Caucasian languages--Grammar, Comparative.
Dagestanian languages--Morphology.
Nakh languages--Morphology.
Harvard subject headings:
Abkhazo-Adyghian languages--Morphology.
Caucasian languages--Grammar, Comparative.
Dagestanian languages--Morphology.
Nakh languages--Morphology.
Princeton subject headings: