Columbia subject headings:
Harvard subject headings:
Saint Petersburg (Russia)--History--Siege, 1941-1944.
Soviet Union. Voenno-Morskoĭ Flot. Baltiĭskiĭ flot.
Princeton subject headings:
Saint Petersburg (Russia)--History--Siege, 1941-1944.
Soviet Union. Voenno-Morskoĭ Flot. Baltiĭskiĭ flot