Columbia subject headings:
Harvard subject headings:
Politics and culture--Austria--History--20th century.
Politics and culture--Austria--History--21st century.
Politics and culture--Germany--History--20th century.
Politics and culture--Germany--History--21st century.
Politics and culture--History--20th century.
Politics and culture--History--21st century.
Social change--History--20th century.
Social change--History--21st century.
Princeton subject headings:
Politics and culture.
Popular culture.