Columbia subject headings:
Authors, Austrian--20th century--Biography--Dictionaries.
Authors, German--20th century--Biography--Dictionaries.
Authors, Swiss--20th century--Biography--Dictionaries.
Harvard subject headings:
Authors, Austrian--20th century--Biography--Dictionaries.
Authors, German--20th century--Biography--Dictionaries.
Authors, Swiss--20th century--Biography--Dictionaries.
Princeton subject headings:
Authors, Austrian--20th century--Biography--Dictionaries.
Authors, German--20th century--Biography--Dictionaries.
Authors, Swiss--20th century--Biography--Dictionaries.
Dictionaries.