Columbia subject headings:
Harvard subject headings:
Saint Petersburg (Russia)--History--Siege, 1941-1944.
Soviet Union. Voenno-Morskoĭ Flot. Baltiĭskiĭ flot. Shtab. Razvedyvatelʹnyĭ otdel.
World War, 1939-1945--Naval operations, Soviet.
World War, 1939-1945--Reconnaissance operations, Soviet.
Princeton subject headings:
Saint Petersburg (Russia)--History--Siege, 1941-1944.
Soviet Union. Voeeno-Morskoĭ flot. Baltiĭskiĭ flot. Shtab. Razvedyvatelʹnyĭ otdel.
World War, 1939-1945--Naval operations, Soviet.