Columbia subject headings:
Harvard subject headings:
Europe--History--1918-1945.
Football and war--Europe--History--20th century.
Football and war--Political aspects--Europe--History--20th century.
Football and war--Social aspects--Europe--History--20th century.
Football--Europe--History--20th century.
Football--Political aspects--Europe--History--20th century.
Football--Social aspects--Europe--History--20th century.
Soccer--Europe--History--20th century.
World War, 1914-1918--Social aspects--Europe.
World War, 1939-1945--Social aspects--Europe.
Princeton subject headings:
Football and war--Europe--History--20th century.
Football and war--Political aspects--Europe--History--20th century.
Football and war--Social aspects--Europe--History--20th century.
Football--Europe--History--20th century.
Football--Political aspects--Europe--History--20th century.
Football--Social aspects--Europe--History--20th century.
World War, 1914-1918--Social aspects--Europe.
World War, 1939-1945--Social aspects--Europe.