Columbia subject headings:
Harvard subject headings:
Brazil--History, Naval--19th century.
Brazil. Marinha--History--19th century.
Portugal--History, Naval--18th century.
Portugal--History, Naval--19th century.
Portugal. Armada--History--18th century.
Portugal. Armada--History--19th century.
Princeton subject headings:
Brazil--History, Naval--19th century.
Brazil. Marinha--History--19th century.
Portugal--History, Naval--18th century.
Portugal--History, Naval--19th century.
Portugal. Armada--History--18th century.
Portugal. Armada--History--19th century.