Columbia subject headings:
Polish language--Grammar, Comparative--Slavic, Southern.
Slavic languages, Southern--Grammar, Comparative--Polish.
Harvard subject headings:
Polish language--Grammar, Comparative--Slavic languages, Southern.
Slavic languages, Southern--Grammar, Comparative--Polish.
Princeton subject headings:
Polish language--Grammar, Comparative--Slavic languages, Southern.
Slavic languages, Southern--Grammar, Comparative--Polish.