Columbia subject headings:
Lassalle, Ferdinand, 1825-1864--Fiction.
Spielhagen, Friedrich, 1829-1911.
Harvard subject headings:
Lassalle, Ferdinand, 1825-1864--Fiction.
Lassalle, Ferdinand, 1825-1864.
Spielhagen, Friedrich, 1829-1911
Spielhagen, Friedrich, 1929-1911.
Princeton subject headings:
Fiction.
Lassalle, Ferdinand, 1825-1864--Fiction.
Spielhagen, Friedrich, 1829-1911.