Columbia subject headings:
Azerbaijani language--Grammar, Comparative--Persian.
Persian language--Grammar, Comparative--Azerbaijani.
Harvard subject headings:
Azerbaijani language--Grammar, Comparative--Persian.
Persian language--Grammar, Comparative--Azerbaijani.
Princeton subject headings:
Azerbaijani language--Grammar, Comparative--Persian.
Persian language--Grammar, Comparative--Azerbaijani.