APA (7th ed.) Citation

Great Britain. Ministry of Defence (Navy) & Hessler, G. (1989). The U-boat war in the Atlantic, 1939-1945: German naval history. H.M.S.O..

Chicago Style (17th ed.) Citation

Great Britain. Ministry of Defence (Navy) and Günter Hessler. The U-boat War in the Atlantic, 1939-1945: German Naval History. London: H.M.S.O., 1989.

MLA (9th ed.) Citation

Great Britain. Ministry of Defence (Navy) and Günter Hessler. The U-boat War in the Atlantic, 1939-1945: German Naval History. H.M.S.O., 1989.