Columbia subject headings:
Harvard subject headings:
Authors, German--19th century--Diaries.
Authors, German--20th century--Diaries
Authors, German--Diaries.
Schmitz, Oscar A. H., 1873-1931--Diaries.
Princeton subject headings:
Authors, German--19th century--Diaries.
Authors, German--20th century--Diaries.
Diaries.
Fiction.
Schmitz, Oscar A. H., 1873-1931--Diaries.