Columbia subject headings:
Harvard subject headings:
Germany. Kriegsmarine--Officers--Biography.
Schnee, Adalbert, 1913-1982.
Submarine captains--Germany--Biography.
Submarines (Ships)--Germany--History--20th century
World War, 1914-1918--Campaigns--Atlantic Ocean
World War, 1914-1918--Naval operations, German
World War, 1914-1918--Naval operations--Submarine
Princeton subject headings:
Germany. Kriegsmarine--Officers--Biography.
Schnee, Adalbert, 1913-1982.
Submarine captains--Germany--Biography.
Submarines (Ships)--Germany--History--20th century.
World War, 1914-1918--Campaigns--Atlantic Ocean.
World War, 1914-1918--Naval operations, German.
World War, 1914-1918--Naval operations--Submarine.