Fayle 1920, σελίδες 154, 165, 170. Fayle, C. Earnest (1920). Seaborne Trade. History of the Great War: Based on Official Documents. I: The Cruiser Period. London: John Murray. OCLC223720130.
worldcat.org
Fayle 1920, σελίδες 154, 165, 170. Fayle, C. Earnest (1920). Seaborne Trade. History of the Great War: Based on Official Documents. I: The Cruiser Period. London: John Murray. OCLC223720130.