Columbia subject headings:
Eastern question.
Soviet Union--History, Naval.
Soviet Union. Voenno-Morskoĭ Flot--History.
Harvard subject headings:
Russia--History--Nicholas I, 1825-1855.
Soviet Union--History, Naval.
Soviet Union. Voenno-Morskoĭ Flot--History.
Princeton subject headings:
Eastern question.
Russia--History, Naval.
Russia--History--Nicholas I, 1825-1855.
Russia. Voenno-morskoĭ flot. Chernomorskiĭ flot--History.