Terraine, J. (2009). Business in great waters: The U-boat wars 1916-1945. Pen & Sword Maritime.
Chicago Style (17. basım) AtıfTerraine, John. Business in Great Waters: The U-boat Wars 1916-1945. South Yorkshire, England: Pen & Sword Maritime, 2009.
MLA (9th ed.) AtıfTerraine, John. Business in Great Waters: The U-boat Wars 1916-1945. Pen & Sword Maritime, 2009.
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