Columbia subject headings:
Harvard subject headings:
Comparative civilization
German language--Grammar, Comparative--Polish.
Germany--Civilization.
Germany--Relations--Poland.
Poland--Civilization
Poland--Relations--Germany
Polish language--Grammar, Comparative--German.
Princeton subject headings:
Comparative civilization.
German language--Grammar, Comparative--Polish.
Germany--Civilization.
Germany--Relations--Poland.
Poland--Civilization.
Poland--Relations--Germany.
Polish language--Grammar, Comparative--German.