Columbia subject headings:
Elections--Sweden--History--20th century.
Party affiliation--Sweden--History--20th century.
Political participation--Sweden--History--20th century.
Political parties--Sweden--History--20th century.
Harvard subject headings:
Elections--Sweden--History--20th century.
Political participation--Sweden--History--20th century.
Political parties--Sweden--History--20th century.
Princeton subject headings:
Elections--Sweden--History--20th century.
Political participation--Sweden--History--20th century.
Political parties--Sweden--History--20th century.