Columbia subject headings:
Avestan language--Dictionaries--Turkish.
Avestan language--Etymology.
Avestan language--Grammar.
Harvard subject headings:
Avestan language--Dictionaries--Turkish.
Avestan language--Etymology.
Avestan language--Grammar.
Princeton subject headings:
Avestan language--Dictionaries--Turkish.
Avestan language--Etymology.
Avestan language--Grammar.