Columbia subject headings:
Harvard subject headings:
Fontane, Theodor, 1819-1898--Appreciation--Poland--Congresses.
Fontane, Theodor, 1819-1898--Criticism and interpretation--Congresses.
Fontane, Theodor, 1819-1898--Travel--Poland--Congresses.
Poland--In literature--Congresses.
Princeton subject headings:
Fontane family--Congresses.
Fontane, Theodor, 1819-1898--Congresses.
Fontane, Theodor, 1819-1898--Criticism and interpretation--Congresses.
Fontane, Theodor, 1819-1898--Travel--Congresses.
Poland--Congresses.