Columbia subject headings:
Anthropological linguistics.
Grammar, Comparative and general--Phonology.
Grammar, Comparative and general--Syntax.
Historical linguistics.
Human evolution.
Language and languages--Origin.
Harvard subject headings:
Princeton subject headings:
Anthropological linguistics.
Grammar, Comparative and general--Phonology.
Grammar, Comparative and general--Syntax.
Historical linguistics.
Human evolution.
Language and languages--Origin.