Lardas, M., & Groult, E. A. (2020). Battle of the Atlantic, 1939-41: RAF coastal command's hardest fight against the U-boats. Osprey Publishing.
Citace podle Chicago (17th ed.)Lardas, Mark, a Edouard A. Groult. Battle of the Atlantic, 1939-41: RAF Coastal Command's Hardest Fight Against the U-boats. Oxford: Osprey Publishing, 2020.
Citace podle MLA (9th ed.)Lardas, Mark, a Edouard A. Groult. Battle of the Atlantic, 1939-41: RAF Coastal Command's Hardest Fight Against the U-boats. Osprey Publishing, 2020.
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