Columbia subject headings:
Biblioteka Uniwersytecka w Warszawie--Catalogs.
Incunabula--Poland--Catalogs.
Rare books--Poland--Catalogs.
Harvard subject headings:
Biblioteka Uniwersytecka w Warszawie--Catalogs.
Early printed books--Bibliography--16th century--Catalogs.
Early printed books--Poland--Warsaw--16th century--Bibliography--Catalogs.
Incunabula--Bibliography--Catalogs.
Incunabula--Poland--Warsaw--Bibliography--Catalogs.
Princeton subject headings:
Biblioteka Uniwersytecka w Warszawie--Catalogs.
Catalogs.
Early printed books--Poland--Warsaw--16th century--Bibliography--Catalogs.
Incunabula--Poland--Warsaw--Bibliography--Catalogs.