Columbia subject headings:
Collective memory--Germany.
Collective memory--Poland.
World War, 1939-1945--Germany.
World War, 1939-1945--Poland.
Harvard subject headings:
Collective memory--Germany--History--20th century.
Collective memory--Poland--History--20th century.
Historic sites--Germany--History--20th century.
Historic sites--Poland--History--20th century.
Memorials--Germany--History--20th century.
Memorials--Poland--History--20th century.
Princeton subject headings:
Collective memory--Germany.
Collective memory--Poland.
World War, 1939-1945--Germany.
World War, 1939-1945--Poland.