Columbia subject headings:
German poetry--20th century--History and criticism.
National socialism in literature.
Sonnets, German--History and criticism.
Harvard subject headings:
German poetry--20th century--History and criticism
National socialism in literature.
Sonnets, German--History and criticism.
Princeton subject headings:
German poetry--20th century--History and criticism.
National socialism in literature.
Sonnets, German--History and criticism.