Columbia subject headings:
Aesthetics in literature.
German drama--20th century--History and criticism.
German drama--21st century--History and criticism.
German language--20th century--Style.
German language--21st century--Style.
Harvard subject headings:
Aesthetics in literature.
German drama--20th century--History and criticism.
German drama--21st century--History and criticism.
German language--20th century--Style.
German language--21st century--Style.
Language and languages--Style
Theater--Germany--History--20th century.
Theater--Germany--History--21st century.
Princeton subject headings:
German drama--20th century--History and criticism.
German drama--21st century--History and criticism.
Language and languages--Style.
Theater--Germany--History--20th century.
Theater--Germany--History--21st century.