Columbia subject headings:
Harvard subject headings:
Soccer--Social aspects--Germany--Berlin--History--20th century.
Soccer--Social aspects--Germany--Brandenburg--History--20th century.
Working class--Recreation--Germany--Berlin--History--20th century.
Working class--Recreation--Germany--Brandenburg--History--20th century.
Princeton subject headings:
Soccer--Social aspects--Germany--Berlin--History--20th century.
Soccer--Social aspects--Germany--Brandenburg--History--20th century.
Working class--Recreation--Germany--Berlin--History--20th century.
Working class--Recreation--Germany--Brandenburg--History--20th century.