Columbia subject headings:
Authors, German--20th century--Biography--Dictionaries.
German literature--20th century--Bio-bibliography--Dictionaries.
German literature--20th century--History and criticism.
Harvard subject headings:
Authors, German--20th century--Biography--Dictionaries
German literature--20th century--Bio-bibliography
Princeton subject headings:
Authors, German--20th century--Biography--Dictionaries.
Dictionaries.
German literature--20th century--Bio-bibliography--Dictionaries.
German literature--20th century--History and criticism.