Columbia subject headings:
Great Britain. Royal Navy--History--20th century.
Great Britain. Royal Navy--Sea life.
Harvard subject headings:
Great Britain. Royal Navy--Discipline--History--20th century.
Great Britain. Royal Navy--Sea life.
Industrial relations--Great Britain--History--20th century.
Princeton subject headings:
Great Britain. Royal Navy--History--20th century.
Invergordon Mutiny, 1931.