Columbia subject headings:
Balkan Peninsula--Languages--Complement.
Balkan Peninsula--Languages--Pronoun.
Balkan Peninsula--Languages--Syntax.
Harvard subject headings:
Balkan Peninsula--Languages--Complement.
Balkan Peninsula--Languages--Pronoun.
Balkan Peninsula--Languages--Syntax.
Grammar, Comparative and general--Pronoun.
Princeton subject headings:
Balkan Peninsula--Languages.
Grammar, Comparative and general--Pronoun.