Columbia subject headings:
Fontane, Theodor, 1819-1898. Unwiederbringlich.
Harvard subject headings:
Fontane, Theodor, 1819-1898. Unwiederbringlich.
Princeton subject headings:
Fontane, Theodor, 1819-1898--Criticism and interpretation.
Fontane, Theodor, 1819-1898. Unwiederbringlich.