Columbia subject headings:
Frankfurt am Main (Germany)--History.
Germany--History--Revolution, 1918.
Germany. Kriegsmarine--History--20th century.
Mutiny--Germany.
Revolutions--Germany--Frankfurt am Main.
Sailors--Germany--Frankfurt am Main--History.
Harvard subject headings:
Frankfurt am Main (Germany)--History
Germany--History--Revolution, 1918.
Germany. Kriegsmarine--History--20th century.
Mutiny--Germany.
Revolutions--Germany--Frankfurt am Main.
Sailors--Germany--Frankfurt am Main--History.
Princeton subject headings: