By guess and by God : the story of the British submarines in the War /

Eitemau Tebyg

• Submarines, mines and torpedoes in the war /
  gan: Domville-Fife, Charles W. (Charles William), b. 1886
  Cyhoeddwyd: (1914)
• Britain's clandestine submarines, 1914-1915 /
  gan: Smith, Gaddis
  Cyhoeddwyd: (1964)
• Vom U-Boot zur Kanzel.
  gan: Niemoller, Martin, 1892-1984
  Cyhoeddwyd: (1934)
• Naval episodes of the Great War /
  gan: Buchan, John, 1875-1940
  Cyhoeddwyd: (1938)
• The naval history of the World War.
  gan: Frothingham, Thomas Goddard, 1865-1937
  Cyhoeddwyd: (1971)